Finding the Third Proportional to 55,417.88 and 83,708.81

Step by Step Solution

1. Step 1: Write the proportion equation
   55,417.88 : 83,708.81 = 83,708.81 : x
2. Step 2: Convert to fraction form
   55,417.88/83,708.81 = 83,708.81/x
3. Step 3: Cross multiply
   55,417.88x = 83,708.81 × 83,708.81
4. Step 4: Simplify right side
   55,417.88x = 7,007,165,290.16
5. Step 5: Solve for x
   x = 7,007,165,290.16/55,417.88
6. Step 6: Final answer
   x = 126,442.33