Finding the Third Proportional to 53,317.13 and 81,127.69

Step by Step Solution

1. Step 1: Write the proportion equation
   53,317.13 : 81,127.69 = 81,127.69 : x
2. Step 2: Convert to fraction form
   53,317.13/81,127.69 = 81,127.69/x
3. Step 3: Cross multiply
   53,317.13x = 81,127.69 × 81,127.69
4. Step 4: Simplify right side
   53,317.13x = 6,581,701,679.10
5. Step 5: Solve for x
   x = 6,581,701,679.10/53,317.13
6. Step 6: Final answer
   x = 123,444.42