Finding the Third Proportional to 56,998.69 and 87,487.59

Step by Step Solution

1. Step 1: Write the proportion equation
   56,998.69 : 87,487.59 = 87,487.59 : x
2. Step 2: Convert to fraction form
   56,998.69/87,487.59 = 87,487.59/x
3. Step 3: Cross multiply
   56,998.69x = 87,487.59 × 87,487.59
4. Step 4: Simplify right side
   56,998.69x = 7,654,079,060.17
5. Step 5: Solve for x
   x = 7,654,079,060.17/56,998.69
6. Step 6: Final answer
   x = 134,285.18