Finding the Third Proportional to 55,383.75 and 83,131.31

Step by Step Solution

1. Step 1: Write the proportion equation
   55,383.75 : 83,131.31 = 83,131.31 : x
2. Step 2: Convert to fraction form
   55,383.75/83,131.31 = 83,131.31/x
3. Step 3: Cross multiply
   55,383.75x = 83,131.31 × 83,131.31
4. Step 4: Simplify right side
   55,383.75x = 6,910,815,117.97
5. Step 5: Solve for x
   x = 6,910,815,117.97/55,383.75
6. Step 6: Final answer
   x = 124,780.56