Finding the Third Proportional to 448.83 and 673.69

Step by Step Solution

1. Step 1: Write the proportion equation
   448.83 : 673.69 = 673.69 : x
2. Step 2: Convert to fraction form
   448.83/673.69 = 673.69/x
3. Step 3: Cross multiply
   448.83x = 673.69 × 673.69
4. Step 4: Simplify right side
   448.83x = 453,854.85
5. Step 5: Solve for x
   x = 453,854.85/448.83
6. Step 6: Final answer
   x = 1,011.20