Finding the Third Proportional to 8,400 and 12,048

Step by Step Solution

1. Step 1: Write the proportion equation
   8,400 : 12,048 = 12,048 : x
2. Step 2: Convert to fraction form
   8,400/12,048 = 12,048/x
3. Step 3: Cross multiply
   8,400x = 12,048 × 12,048
4. Step 4: Simplify right side
   8,400x = 145,154,304
5. Step 5: Solve for x
   x = 145,154,304/8,400
6. Step 6: Final answer
   x = 17,280.27