Finding the Third Proportional to 20,138 and 28,892

Step by Step Solution

1. Step 1: Write the proportion equation
   20,138 : 28,892 = 28,892 : x
2. Step 2: Convert to fraction form
   20,138/28,892 = 28,892/x
3. Step 3: Cross multiply
   20,138x = 28,892 × 28,892
4. Step 4: Simplify right side
   20,138x = 834,747,664
5. Step 5: Solve for x
   x = 834,747,664/20,138
6. Step 6: Final answer
   x = 41,451.37