Finding the Third Proportional to 61,134.75 and 86,572.13

Step by Step Solution

1. Step 1: Write the proportion equation
   61,134.75 : 86,572.13 = 86,572.13 : x
2. Step 2: Convert to fraction form
   61,134.75/86,572.13 = 86,572.13/x
3. Step 3: Cross multiply
   61,134.75x = 86,572.13 × 86,572.13
4. Step 4: Simplify right side
   61,134.75x = 7,494,732,827.02
5. Step 5: Solve for x
   x = 7,494,732,827.02/61,134.75
6. Step 6: Final answer
   x = 122,593.66