Finding the Third Proportional to 54,148.50 and 83,338.88

Step by Step Solution

1. Step 1: Write the proportion equation
   54,148.50 : 83,338.88 = 83,338.88 : x
2. Step 2: Convert to fraction form
   54,148.50/83,338.88 = 83,338.88/x
3. Step 3: Cross multiply
   54,148.50x = 83,338.88 × 83,338.88
4. Step 4: Simplify right side
   54,148.50x = 6,945,368,086.27
5. Step 5: Solve for x
   x = 6,945,368,086.27/54,148.50
6. Step 6: Final answer
   x = 128,265.20