Finding the Third Proportional to 59,440.50 and 128,793.38

Step by Step Solution

1. Step 1: Write the proportion equation
   59,440.50 : 128,793.38 = 128,793.38 : x
2. Step 2: Convert to fraction form
   59,440.50/128,793.38 = 128,793.38/x
3. Step 3: Cross multiply
   59,440.50x = 128,793.38 × 128,793.38
4. Step 4: Simplify right side
   59,440.50x = 16,587,733,443.89
5. Step 5: Solve for x
   x = 16,587,733,443.89/59,440.50
6. Step 6: Final answer
   x = 279,064.50