Finding the Third Proportional to 54,417.38 and 84,088.69

Step by Step Solution

1. Step 1: Write the proportion equation
   54,417.38 : 84,088.69 = 84,088.69 : x
2. Step 2: Convert to fraction form
   54,417.38/84,088.69 = 84,088.69/x
3. Step 3: Cross multiply
   54,417.38x = 84,088.69 × 84,088.69
4. Step 4: Simplify right side
   54,417.38x = 7,070,907,365.47
5. Step 5: Solve for x
   x = 7,070,907,365.47/54,417.38
6. Step 6: Final answer
   x = 129,938.41