Finding the Third Proportional to 55,712.25 and 83,581.88

Step by Step Solution

1. Step 1: Write the proportion equation
   55,712.25 : 83,581.88 = 83,581.88 : x
2. Step 2: Convert to fraction form
   55,712.25/83,581.88 = 83,581.88/x
3. Step 3: Cross multiply
   55,712.25x = 83,581.88 × 83,581.88
4. Step 4: Simplify right side
   55,712.25x = 6,985,929,828.52
5. Step 5: Solve for x
   x = 6,985,929,828.52/55,712.25
6. Step 6: Final answer
   x = 125,393.07