Finding the Third Proportional to 8,040 and 12,468

Step by Step Solution

1. Step 1: Write the proportion equation
   8,040 : 12,468 = 12,468 : x
2. Step 2: Convert to fraction form
   8,040/12,468 = 12,468/x
3. Step 3: Cross multiply
   8,040x = 12,468 × 12,468
4. Step 4: Simplify right side
   8,040x = 155,451,024
5. Step 5: Solve for x
   x = 155,451,024/8,040
6. Step 6: Final answer
   x = 19,334.70