Finding the Third Proportional to 114.31 and 243.81

Step by Step Solution

1. Step 1: Write the proportion equation
   114.31 : 243.81 = 243.81 : x
2. Step 2: Convert to fraction form
   114.31/243.81 = 243.81/x
3. Step 3: Cross multiply
   114.31x = 243.81 × 243.81
4. Step 4: Simplify right side
   114.31x = 59,444.54
5. Step 5: Solve for x
   x = 59,444.54/114.31
6. Step 6: Final answer
   x = 520.02