Finding the Third Proportional to 12,717.38 and 25,780.88

Step by Step Solution

1. Step 1: Write the proportion equation
   12,717.38 : 25,780.88 = 25,780.88 : x
2. Step 2: Convert to fraction form
   12,717.38/25,780.88 = 25,780.88/x
3. Step 3: Cross multiply
   12,717.38x = 25,780.88 × 25,780.88
4. Step 4: Simplify right side
   12,717.38x = 664,653,515.77
5. Step 5: Solve for x
   x = 664,653,515.77/12,717.38
6. Step 6: Final answer
   x = 52,263.42