Finding the Third Proportional to 7,963.31 and 12,613.22

Step by Step Solution

1. Step 1: Write the proportion equation
   7,963.31 : 12,613.22 = 12,613.22 : x
2. Step 2: Convert to fraction form
   7,963.31/12,613.22 = 12,613.22/x
3. Step 3: Cross multiply
   7,963.31x = 12,613.22 × 12,613.22
4. Step 4: Simplify right side
   7,963.31x = 159,093,287.24
5. Step 5: Solve for x
   x = 159,093,287.24/7,963.31
6. Step 6: Final answer
   x = 19,978.28