Finding the Third Proportional to 20,397 and 41,892

Step by Step Solution

1. Step 1: Write the proportion equation
   20,397 : 41,892 = 41,892 : x
2. Step 2: Convert to fraction form
   20,397/41,892 = 41,892/x
3. Step 3: Cross multiply
   20,397x = 41,892 × 41,892
4. Step 4: Simplify right side
   20,397x = 1,754,939,664
5. Step 5: Solve for x
   x = 1,754,939,664/20,397
6. Step 6: Final answer
   x = 86,039.11