Finding the Third Proportional to 405.98 and 673.52

Step by Step Solution

1. Step 1: Write the proportion equation
   405.98 : 673.52 = 673.52 : x
2. Step 2: Convert to fraction form
   405.98/673.52 = 673.52/x
3. Step 3: Cross multiply
   405.98x = 673.52 × 673.52
4. Step 4: Simplify right side
   405.98x = 453,633.82
5. Step 5: Solve for x
   x = 453,633.82/405.98
6. Step 6: Final answer
   x = 1,117.37