SB 5.21.10
yada caindryah puryah pracalate pañcadasa-ghatikabhir yamyam sapada-koti-dvayam yojananam sardha-dvadasa-laksani sadhikani copayati.
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada:
When the sun travels from Devadhani, the residence of Indra, to Samyamani, the residence of Yamaraja, it travels 23,775,000 yojanas [190,200,000 miles] in fifteen ghatikas [six hours].
Purport by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada:
The distance indicated by the word sadhikani is pañca-vimsati-sahasradhikani, or 25,000 yojanas. That plus two and a half crores and twelve and a half laksa of yojanas is the distance the sun travels between each two cities. This comes to 23,775,000 yojanas, or 190,200,000 miles. The total orbit of the sun is four times that distance, or 95,100,000 yojanas (760,800,000 miles).