Finding the Third Proportional to 12,228 and 25,413

Step by Step Solution

1. Step 1: Write the proportion equation
   12,228 : 25,413 = 25,413 : x
2. Step 2: Convert to fraction form
   12,228/25,413 = 25,413/x
3. Step 3: Cross multiply
   12,228x = 25,413 × 25,413
4. Step 4: Simplify right side
   12,228x = 645,820,569
5. Step 5: Solve for x
   x = 645,820,569/12,228
6. Step 6: Final answer
   x = 52,814.90