Finding the Third Proportional to 55,660.50 and 83,490.75

Step by Step Solution

1. Step 1: Write the proportion equation
   55,660.50 : 83,490.75 = 83,490.75 : x
2. Step 2: Convert to fraction form
   55,660.50/83,490.75 = 83,490.75/x
3. Step 3: Cross multiply
   55,660.50x = 83,490.75 × 83,490.75
4. Step 4: Simplify right side
   55,660.50x = 6,970,705,335.56
5. Step 5: Solve for x
   x = 6,970,705,335.56/55,660.50
6. Step 6: Final answer
   x = 125,236.13