Finding the Third Proportional to 31,351.50 and 63,513

Step by Step Solution

1. Step 1: Write the proportion equation
   31,351.50 : 63,513 = 63,513 : x
2. Step 2: Convert to fraction form
   31,351.50/63,513 = 63,513/x
3. Step 3: Cross multiply
   31,351.50x = 63,513 × 63,513
4. Step 4: Simplify right side
   31,351.50x = 4,033,901,169
5. Step 5: Solve for x
   x = 4,033,901,169/31,351.50
6. Step 6: Final answer
   x = 128,666.93