Finding the Third Proportional to 443.81 and 671.81

Step by Step Solution

1. Step 1: Write the proportion equation
   443.81 : 671.81 = 671.81 : x
2. Step 2: Convert to fraction form
   443.81/671.81 = 671.81/x
3. Step 3: Cross multiply
   443.81x = 671.81 × 671.81
4. Step 4: Simplify right side
   443.81x = 451,332.04
5. Step 5: Solve for x
   x = 451,332.04/443.81
6. Step 6: Final answer
   x = 1,016.94