History of Hindu Mathematics: A Source Book v2.c17.s25.53

v2.c17.s25.53

*Solution.* "In this example, the product-interpolator is 9 times the number-interpolator. The square-root of 9 is 3. Hence the square-roots corresponding to the numbers will have the common difference 3. Let them be $x, x + 3, x + 6, x + 9.$