Finding the Third Proportional to 308.34 and 673.59

Step by Step Solution

1. Step 1: Write the proportion equation
   308.34 : 673.59 = 673.59 : x
2. Step 2: Convert to fraction form
   308.34/673.59 = 673.59/x
3. Step 3: Cross multiply
   308.34x = 673.59 × 673.59
4. Step 4: Simplify right side
   308.34x = 453,728.54
5. Step 5: Solve for x
   x = 453,728.54/308.34
6. Step 6: Final answer
   x = 1,471.50