Finding the Third Proportional to 2,425.71 and 5,215.92

Step by Step Solution

1. Step 1: Write the proportion equation
   2,425.71 : 5,215.92 = 5,215.92 : x
2. Step 2: Convert to fraction form
   2,425.71/5,215.92 = 5,215.92/x
3. Step 3: Cross multiply
   2,425.71x = 5,215.92 × 5,215.92
4. Step 4: Simplify right side
   2,425.71x = 27,205,841.01
5. Step 5: Solve for x
   x = 27,205,841.01/2,425.71
6. Step 6: Final answer
   x = 11,215.62