Finding the Third Proportional to 20,746 and 31,930

Step by Step Solution

1. Step 1: Write the proportion equation
   20,746 : 31,930 = 31,930 : x
2. Step 2: Convert to fraction form
   20,746/31,930 = 31,930/x
3. Step 3: Cross multiply
   20,746x = 31,930 × 31,930
4. Step 4: Simplify right side
   20,746x = 1,019,524,900
5. Step 5: Solve for x
   x = 1,019,524,900/20,746
6. Step 6: Final answer
   x = 49,143.20