Finding the Third Proportional to 51.33 and 111.20

Step by Step Solution

1. Step 1: Write the proportion equation
   51.33 : 111.20 = 111.20 : x
2. Step 2: Convert to fraction form
   51.33/111.20 = 111.20/x
3. Step 3: Cross multiply
   51.33x = 111.20 × 111.20
4. Step 4: Simplify right side
   51.33x = 12,365.27
5. Step 5: Solve for x
   x = 12,365.27/51.33
6. Step 6: Final answer
   x = 240.91