Finding the Third Proportional to 12,487.78 and 26,752.78

Step by Step Solution

1. Step 1: Write the proportion equation
   12,487.78 : 26,752.78 = 26,752.78 : x
2. Step 2: Convert to fraction form
   12,487.78/26,752.78 = 26,752.78/x
3. Step 3: Cross multiply
   12,487.78x = 26,752.78 × 26,752.78
4. Step 4: Simplify right side
   12,487.78x = 715,711,304.61
5. Step 5: Solve for x
   x = 715,711,304.61/12,487.78
6. Step 6: Final answer
   x = 57,312.93