Finding the Third Proportional to 8,256 and 12,472

Step by Step Solution

1. Step 1: Write the proportion equation
   8,256 : 12,472 = 12,472 : x
2. Step 2: Convert to fraction form
   8,256/12,472 = 12,472/x
3. Step 3: Cross multiply
   8,256x = 12,472 × 12,472
4. Step 4: Simplify right side
   8,256x = 155,550,784
5. Step 5: Solve for x
   x = 155,550,784/8,256
6. Step 6: Final answer
   x = 18,840.94