Finding the Third Proportional to 20,448 and 31,482

Step by Step Solution

1. Step 1: Write the proportion equation
   20,448 : 31,482 = 31,482 : x
2. Step 2: Convert to fraction form
   20,448/31,482 = 31,482/x
3. Step 3: Cross multiply
   20,448x = 31,482 × 31,482
4. Step 4: Simplify right side
   20,448x = 991,116,324
5. Step 5: Solve for x
   x = 991,116,324/20,448
6. Step 6: Final answer
   x = 48,470.09