The bakhshali manuscript shows that another method for calculating nonperfect squares was being used in india by 400 ce. use this method to find the approximate value of . the nearest perfect square that is less than 22 is , whose square root is . add the square root from step 1 to to get 4.75. calculate the quantity one-half times the square of divided by the value found in step 2, or 4.75. subtract the value found in step 3 from the value found in step 2, or 4.75. the approximate value of is .