Finding the Third Proportional to 20,717 and 31,969

Step by Step Solution

1. Step 1: Write the proportion equation
   20,717 : 31,969 = 31,969 : x
2. Step 2: Convert to fraction form
   20,717/31,969 = 31,969/x
3. Step 3: Cross multiply
   20,717x = 31,969 × 31,969
4. Step 4: Simplify right side
   20,717x = 1,022,016,961
5. Step 5: Solve for x
   x = 1,022,016,961/20,717
6. Step 6: Final answer
   x = 49,332.29