Finding the Third Proportional to 10,663 and 16,139

Step by Step Solution

1. Step 1: Write the proportion equation
   10,663 : 16,139 = 16,139 : x
2. Step 2: Convert to fraction form
   10,663/16,139 = 16,139/x
3. Step 3: Cross multiply
   10,663x = 16,139 × 16,139
4. Step 4: Simplify right side
   10,663x = 260,467,321
5. Step 5: Solve for x
   x = 260,467,321/10,663
6. Step 6: Final answer
   x = 24,427.21