Finding the Third Proportional to 56,832.50 and 89,160.50

Step by Step Solution

1. Step 1: Write the proportion equation
   56,832.50 : 89,160.50 = 89,160.50 : x
2. Step 2: Convert to fraction form
   56,832.50/89,160.50 = 89,160.50/x
3. Step 3: Cross multiply
   56,832.50x = 89,160.50 × 89,160.50
4. Step 4: Simplify right side
   56,832.50x = 7,949,594,760.25
5. Step 5: Solve for x
   x = 7,949,594,760.25/56,832.50
6. Step 6: Final answer
   x = 139,877.62