Finding the Third Proportional to 20,123 and 29,499

Step by Step Solution

1. Step 1: Write the proportion equation
   20,123 : 29,499 = 29,499 : x
2. Step 2: Convert to fraction form
   20,123/29,499 = 29,499/x
3. Step 3: Cross multiply
   20,123x = 29,499 × 29,499
4. Step 4: Simplify right side
   20,123x = 870,191,001
5. Step 5: Solve for x
   x = 870,191,001/20,123
6. Step 6: Final answer
   x = 43,243.60