Finding the Third Proportional to 20,306.25 and 31,381.31

Step by Step Solution

1. Step 1: Write the proportion equation
   20,306.25 : 31,381.31 = 31,381.31 : x
2. Step 2: Convert to fraction form
   20,306.25/31,381.31 = 31,381.31/x
3. Step 3: Cross multiply
   20,306.25x = 31,381.31 × 31,381.31
4. Step 4: Simplify right side
   20,306.25x = 984,786,774.22
5. Step 5: Solve for x
   x = 984,786,774.22/20,306.25
6. Step 6: Final answer
   x = 48,496.73