Finding the Third Proportional to 20,601 and 30,831

Step by Step Solution

1. Step 1: Write the proportion equation
   20,601 : 30,831 = 30,831 : x
2. Step 2: Convert to fraction form
   20,601/30,831 = 30,831/x
3. Step 3: Cross multiply
   20,601x = 30,831 × 30,831
4. Step 4: Simplify right side
   20,601x = 950,550,561
5. Step 5: Solve for x
   x = 950,550,561/20,601
6. Step 6: Final answer
   x = 46,140.99