Finding the Third Proportional to 12,612 and 22,128

Step by Step Solution

1. Step 1: Write the proportion equation
   12,612 : 22,128 = 22,128 : x
2. Step 2: Convert to fraction form
   12,612/22,128 = 22,128/x
3. Step 3: Cross multiply
   12,612x = 22,128 × 22,128
4. Step 4: Simplify right side
   12,612x = 489,648,384
5. Step 5: Solve for x
   x = 489,648,384/12,612
6. Step 6: Final answer
   x = 38,824.01