Finding the Third Proportional to 443.25 and 672.75

Step by Step Solution

1. Step 1: Write the proportion equation
   443.25 : 672.75 = 672.75 : x
2. Step 2: Convert to fraction form
   443.25/672.75 = 672.75/x
3. Step 3: Cross multiply
   443.25x = 672.75 × 672.75
4. Step 4: Simplify right side
   443.25x = 452,592.56
5. Step 5: Solve for x
   x = 452,592.56/443.25
6. Step 6: Final answer
   x = 1,021.08