Finding the Third Proportional to 243.27 and 348.69

Step by Step Solution

1. Step 1: Write the proportion equation
   243.27 : 348.69 = 348.69 : x
2. Step 2: Convert to fraction form
   243.27/348.69 = 348.69/x
3. Step 3: Cross multiply
   243.27x = 348.69 × 348.69
4. Step 4: Simplify right side
   243.27x = 121,587.01
5. Step 5: Solve for x
   x = 121,587.01/243.27
6. Step 6: Final answer
   x = 499.79