Finding the Third Proportional to 11,216 and 25,439

Step by Step Solution

1. Step 1: Write the proportion equation
   11,216 : 25,439 = 25,439 : x
2. Step 2: Convert to fraction form
   11,216/25,439 = 25,439/x
3. Step 3: Cross multiply
   11,216x = 25,439 × 25,439
4. Step 4: Simplify right side
   11,216x = 647,142,721
5. Step 5: Solve for x
   x = 647,142,721/11,216
6. Step 6: Final answer
   x = 57,698.17