Finding the Third Proportional to 56,998.69 and 87,685.03

Step by Step Solution

1. Step 1: Write the proportion equation
   56,998.69 : 87,685.03 = 87,685.03 : x
2. Step 2: Convert to fraction form
   56,998.69/87,685.03 = 87,685.03/x
3. Step 3: Cross multiply
   56,998.69x = 87,685.03 × 87,685.03
4. Step 4: Simplify right side
   56,998.69x = 7,688,664,705.31
5. Step 5: Solve for x
   x = 7,688,664,705.31/56,998.69
6. Step 6: Final answer
   x = 134,891.96