Surya Siddhanta
ज्याम् *प्रोज्झ्य शेषम् तत्त्वाश्विहतम् तद्विवरोद्धृतम् । (C प्रोज्झ्यान्यत्तत्त्वयमैर् हत्वा)(२२५) सम्ख्यातत्त्वाश्विसम्वर्गे *सम्योज्य धनुर् उच्यते ॥(C सम्योज्यम्) (२२५)
Subtract the (next less) sine (from the given sine); multiply the remainder by 225 and divide the product by the difference (between the next less and greater sines): add the quotient to the product of 225, and that number (which corresponds to the next less sine); the sum will be (the number of minutes contained in) the arc (required).
english translation
jyAm *projjhya zeSam tattvAzvihatam tadvivaroddhRtam । (C projjhyAnyattattvayamair hatvA)(225) samkhyAtattvAzvisamvarge *samyojya dhanur ucyate ॥(C samyojyam) (225)
hk transliteration by Sanscript