Finding the Third Proportional to 16,109 and 21,651

Step by Step Solution

1. Step 1: Write the proportion equation
   16,109 : 21,651 = 21,651 : x
2. Step 2: Convert to fraction form
   16,109/21,651 = 21,651/x
3. Step 3: Cross multiply
   16,109x = 21,651 × 21,651
4. Step 4: Simplify right side
   16,109x = 468,765,801
5. Step 5: Solve for x
   x = 468,765,801/16,109
6. Step 6: Final answer
   x = 29,099.62