Finding the Third Proportional to 8,676 and 12,078

Step by Step Solution

1. Step 1: Write the proportion equation
   8,676 : 12,078 = 12,078 : x
2. Step 2: Convert to fraction form
   8,676/12,078 = 12,078/x
3. Step 3: Cross multiply
   8,676x = 12,078 × 12,078
4. Step 4: Simplify right side
   8,676x = 145,878,084
5. Step 5: Solve for x
   x = 145,878,084/8,676
6. Step 6: Final answer
   x = 16,813.98