SB 5.21.10

yadā caindryāḥ puryāḥ pracalate pañcadaśa-ghaṭikābhir yāmyāṁ sapāda-koṭi-dvayaṁ yojanānāṁ sārdha-dvādaśa-lakṣāṇi sādhikāni copayāti.
Synonyms: 
yadā — when; ca — and; aindryāḥ — of Indra; puryāḥ — from the residence; pracalate — it moves; pañcadaśa — by fifteen; ghaṭikābhiḥ — half hours (actually twenty-four minutes); yāmyām — to the residence of Yamarāja; sapāda-koṭi-dvayam — two and a quarter crores (22,500,000); yojanānām — of yojanas; sārdha — and one half; dvādaśa-lakṣāṇi — twelve hundred thousand; sādhikāni — twenty-five thousand more; ca — and; upayāti — he passes over.
Translation: 
When the sun travels from Devadhānī, the residence of Indra, to Saṁyamanī, the residence of Yamarāja, it travels 23,775,000 yojanas [190,200,000 miles] in fifteen ghaṭikās [six hours].
Purport: 

The distance indicated by the word sādhikāni is pañca-viṁśati-sahasrādhikāni, or 25,000 yojanas. That plus two and a half crores and twelve and a half lakṣa 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).