Finding the Third Proportional to 53.79 and 114.54

Step by Step Solution

1. Step 1: Write the proportion equation
   53.79 : 114.54 = 114.54 : x
2. Step 2: Convert to fraction form
   53.79/114.54 = 114.54/x
3. Step 3: Cross multiply
   53.79x = 114.54 × 114.54
4. Step 4: Simplify right side
   53.79x = 13,119.20
5. Step 5: Solve for x
   x = 13,119.20/53.79
6. Step 6: Final answer
   x = 243.90