Finding the Third Proportional to 56,472.19 and 87,490.13

Step by Step Solution

1. Step 1: Write the proportion equation
   56,472.19 : 87,490.13 = 87,490.13 : x
2. Step 2: Convert to fraction form
   56,472.19/87,490.13 = 87,490.13/x
3. Step 3: Cross multiply
   56,472.19x = 87,490.13 × 87,490.13
4. Step 4: Simplify right side
   56,472.19x = 7,654,521,972.52
5. Step 5: Solve for x
   x = 7,654,521,972.52/56,472.19
6. Step 6: Final answer
   x = 135,544.99