Finding the Third Proportional to 20,306.81 and 31,382.16

Step by Step Solution

1. Step 1: Write the proportion equation
   20,306.81 : 31,382.16 = 31,382.16 : x
2. Step 2: Convert to fraction form
   20,306.81/31,382.16 = 31,382.16/x
3. Step 3: Cross multiply
   20,306.81x = 31,382.16 × 31,382.16
4. Step 4: Simplify right side
   20,306.81x = 984,839,730.90
5. Step 5: Solve for x
   x = 984,839,730.90/20,306.81
6. Step 6: Final answer
   x = 48,498.00