Finding the Third Proportional to 12,111 and 16,359

Step by Step Solution

1. Step 1: Write the proportion equation
   12,111 : 16,359 = 16,359 : x
2. Step 2: Convert to fraction form
   12,111/16,359 = 16,359/x
3. Step 3: Cross multiply
   12,111x = 16,359 × 16,359
4. Step 4: Simplify right side
   12,111x = 267,616,881
5. Step 5: Solve for x
   x = 267,616,881/12,111
6. Step 6: Final answer
   x = 22,097.01