Finding the Third Proportional to 12,108 and 17,218

Step by Step Solution

1. Step 1: Write the proportion equation
   12,108 : 17,218 = 17,218 : x
2. Step 2: Convert to fraction form
   12,108/17,218 = 17,218/x
3. Step 3: Cross multiply
   12,108x = 17,218 × 17,218
4. Step 4: Simplify right side
   12,108x = 296,459,524
5. Step 5: Solve for x
   x = 296,459,524/12,108
6. Step 6: Final answer
   x = 24,484.60