Finding the Third Proportional to 129,397.50 and 173,896.88

Step by Step Solution

1. Step 1: Write the proportion equation
   129,397.50 : 173,896.88 = 173,896.88 : x
2. Step 2: Convert to fraction form
   129,397.50/173,896.88 = 173,896.88/x
3. Step 3: Cross multiply
   129,397.50x = 173,896.88 × 173,896.88
4. Step 4: Simplify right side
   129,397.50x = 30,240,123,134.77
5. Step 5: Solve for x
   x = 30,240,123,134.77/129,397.50
6. Step 6: Final answer
   x = 233,699.44