Finding the Third Proportional to 114.89 and 243.91

Step by Step Solution

1. Step 1: Write the proportion equation
   114.89 : 243.91 = 243.91 : x
2. Step 2: Convert to fraction form
   114.89/243.91 = 243.91/x
3. Step 3: Cross multiply
   114.89x = 243.91 × 243.91
4. Step 4: Simplify right side
   114.89x = 59,494.07
5. Step 5: Solve for x
   x = 59,494.07/114.89
6. Step 6: Final answer
   x = 517.83