Finding the Third Proportional to 60,601.50 and 128,493

Step by Step Solution

1. Step 1: Write the proportion equation
   60,601.50 : 128,493 = 128,493 : x
2. Step 2: Convert to fraction form
   60,601.50/128,493 = 128,493/x
3. Step 3: Cross multiply
   60,601.50x = 128,493 × 128,493
4. Step 4: Simplify right side
   60,601.50x = 16,510,451,049
5. Step 5: Solve for x
   x = 16,510,451,049/60,601.50
6. Step 6: Final answer
   x = 272,442.94