Finding the Third Proportional to 12,739.78 and 17,002.41

Step by Step Solution

1. Step 1: Write the proportion equation
   12,739.78 : 17,002.41 = 17,002.41 : x
2. Step 2: Convert to fraction form
   12,739.78/17,002.41 = 17,002.41/x
3. Step 3: Cross multiply
   12,739.78x = 17,002.41 × 17,002.41
4. Step 4: Simplify right side
   12,739.78x = 289,081,818.29
5. Step 5: Solve for x
   x = 289,081,818.29/12,739.78
6. Step 6: Final answer
   x = 22,691.27