Final answer:
The three arteries in the posterior division of the internal iliac artery are the Iliolumbar artery, Superior gluteal artery, and Inferior gluteal artery, with the Superior gluteal artery being the largest.
Step-by-step explanation:
The three arteries in the posterior division of the internal iliac artery are the Iliolumbar artery, Superior gluteal artery, and Inferior gluteal artery. Among these, the Superior gluteal artery is the largest.