Finding the Third Proportional to 71,313.75 and 99,704.25

Step by Step Solution

1. Step 1: Write the proportion equation
   71,313.75 : 99,704.25 = 99,704.25 : x
2. Step 2: Convert to fraction form
   71,313.75/99,704.25 = 99,704.25/x
3. Step 3: Cross multiply
   71,313.75x = 99,704.25 × 99,704.25
4. Step 4: Simplify right side
   71,313.75x = 9,940,937,468.06
5. Step 5: Solve for x
   x = 9,940,937,468.06/71,313.75
6. Step 6: Final answer
   x = 139,397.21