Finding the Third Proportional to 8,139 and 10,892

Step by Step Solution

1. Step 1: Write the proportion equation
   8,139 : 10,892 = 10,892 : x
2. Step 2: Convert to fraction form
   8,139/10,892 = 10,892/x
3. Step 3: Cross multiply
   8,139x = 10,892 × 10,892
4. Step 4: Simplify right side
   8,139x = 118,635,664
5. Step 5: Solve for x
   x = 118,635,664/8,139
6. Step 6: Final answer
   x = 14,576.20