Finding the Third Proportional to 12,658.78 and 27,766.55

Step by Step Solution

1. Step 1: Write the proportion equation
   12,658.78 : 27,766.55 = 27,766.55 : x
2. Step 2: Convert to fraction form
   12,658.78/27,766.55 = 27,766.55/x
3. Step 3: Cross multiply
   12,658.78x = 27,766.55 × 27,766.55
4. Step 4: Simplify right side
   12,658.78x = 770,981,125.36
5. Step 5: Solve for x
   x = 770,981,125.36/12,658.78
6. Step 6: Final answer
   x = 60,904.85