Finding the Third Proportional to 89,400.38 and 123,940.13

Step by Step Solution

1. Step 1: Write the proportion equation
   89,400.38 : 123,940.13 = 123,940.13 : x
2. Step 2: Convert to fraction form
   89,400.38/123,940.13 = 123,940.13/x
3. Step 3: Cross multiply
   89,400.38x = 123,940.13 × 123,940.13
4. Step 4: Simplify right side
   89,400.38x = 15,361,154,585.02
5. Step 5: Solve for x
   x = 15,361,154,585.02/89,400.38
6. Step 6: Final answer
   x = 171,824.27