Finding the Third Proportional to 144.83 and 308.89

Step by Step Solution

1. Step 1: Write the proportion equation
   144.83 : 308.89 = 308.89 : x
2. Step 2: Convert to fraction form
   144.83/308.89 = 308.89/x
3. Step 3: Cross multiply
   144.83x = 308.89 × 308.89
4. Step 4: Simplify right side
   144.83x = 95,414.02
5. Step 5: Solve for x
   x = 95,414.02/144.83
6. Step 6: Final answer
   x = 658.78