Finding the Third Proportional to 20,040 and 31,436

Step by Step Solution

1. Step 1: Write the proportion equation
   20,040 : 31,436 = 31,436 : x
2. Step 2: Convert to fraction form
   20,040/31,436 = 31,436/x
3. Step 3: Cross multiply
   20,040x = 31,436 × 31,436
4. Step 4: Simplify right side
   20,040x = 988,222,096
5. Step 5: Solve for x
   x = 988,222,096/20,040
6. Step 6: Final answer
   x = 49,312.48