Finding the Third Proportional to 57,192.75 and 87,490.13

Step by Step Solution

1. Step 1: Write the proportion equation
   57,192.75 : 87,490.13 = 87,490.13 : x
2. Step 2: Convert to fraction form
   57,192.75/87,490.13 = 87,490.13/x
3. Step 3: Cross multiply
   57,192.75x = 87,490.13 × 87,490.13
4. Step 4: Simplify right side
   57,192.75x = 7,654,521,972.52
5. Step 5: Solve for x
   x = 7,654,521,972.52/57,192.75
6. Step 6: Final answer
   x = 133,837.28