your pp supply will be hard pressed to keep up, though.
Quick answer is yes, long answer is it doesn't matter.
So lets assume this build at level 10, 18 starting Int, your 2 levels ups go into Int, and you have a +4 item for a total of 22 Int
Human with 2 flaws
1 Precocious Apprentice
1 Spell Focus Conjuration
1 Psiotheurgist Conjuration / Metacreativity
3 Boost Construct
6 Linked Power
9 Metapower Linked Power
So at level 10 here is your stats
You have 7 levels of Beguiler with a caster level of 7
You have 9 levels of Psion with a manifester level of 9
Your Conjuration and Metacreativity Spells have a total manifester level of 16
Round 1 You manifested a Psionic Grease (1) with a Linked Power of Astral Construct (17) for a total of 18pp which Metapower this become 16pp which is exactly your manifester level.
Round 2 While your enemies are struggling with recovering from the grease, the big hulking beat stick shows up. He has a CR of 10, a Strength of 43, a Grapple of 38, and 3 Menu C Abilities (or 2 Menu C Abilities and 2 Menu B Abilities). The Slam Attack of the Astral Construct has an attack of +28 and does 2d6+16 damage (before Menu Abilities are factored in).
Now doing this cost 16 pp well here are your pp and spells per day
Psion Base PP of level 9 is 72 pp, bonus PP is 27,
thus a total of 99pp or 17% of your daily pp to summon a level 9 construct and gain a grease effect.
You also are a 7th level beguiler with spells of 6 1st 6 2nd 4 3rd, you also have 1 bonus 2nd due to precocious apprentice, and bonus spells of 2 1st 2 2nd 1 3rd.
For a total of 8 1st level spells, 9 2nd level spells, 5 3rd level spells.