Since you are going from a wall to the center of the room and under carpet is not an option, then there are two alternatives. Core hole (or drilling) or over-head and a power pole.

Where did anybody say anything about going to the center of the room???

I'd probably need a 25' pre-assembled cable just to reach to a conference table.

Huhhh????? Where did that quote come from?

-Hal

CALIFORNIA PROPOSITION 65 WARNING: Some comments made by me are known to the State of California to cause irreversible brain damage and serious mental disorders leading to confinement.