Finding the Third Proportional to 53,555.13 and 83,025.42

Step by Step Solution

1. Step 1: Write the proportion equation
   53,555.13 : 83,025.42 = 83,025.42 : x
2. Step 2: Convert to fraction form
   53,555.13/83,025.42 = 83,025.42/x
3. Step 3: Cross multiply
   53,555.13x = 83,025.42 × 83,025.42
4. Step 4: Simplify right side
   53,555.13x = 6,893,220,677.52
5. Step 5: Solve for x
   x = 6,893,220,677.52/53,555.13
6. Step 6: Final answer
   x = 128,712.61