SB 5.20.29
evam eva dadhi-mandodat paratah puskaradvipas tato dvi-gunayamah samantata upakalpitah samanena
svadudakena samudrena bahir avrto yasmin brhat-puskaram jvalana-sikhamala-kanaka-patrayutayutam
bhagavatah kamalasanasyadhyasanam parikalpitam.
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada:
Outside the ocean of yogurt is another island, known as Puskaradvipa, which is 6,400,000 yojanas [51,200,000 miles] wide, twice as wide as the ocean of yogurt. It is surrounded by an ocean of very tasteful water as broad as the island itself. On Puskaradvipa there is a great lotus flower with 100,000,000 pure golden petals, as effulgent as the flames of fire. That lotus flower is considered the sitting place of Lord Brahma, who is the most powerful living being and who is therefore sometimes called bhagavan.