If a, b, c are in continued proportion, then a/b = b/c. So 9/12 = 12/c. c = (12*12)/9 = 144/9 = 16.
यदि a, b, c निरंतर समानुपात में हैं, तो a/b = b/c। इसलिए 9/12 = 12/c। c = (12*12)/9 = 144/9 = 16।