Finding the Third Proportional to 111.38 and 243.84

Step by Step Solution

1. Step 1: Write the proportion equation
   111.38 : 243.84 = 243.84 : x
2. Step 2: Convert to fraction form
   111.38/243.84 = 243.84/x
3. Step 3: Cross multiply
   111.38x = 243.84 × 243.84
4. Step 4: Simplify right side
   111.38x = 59,459.77
5. Step 5: Solve for x
   x = 59,459.77/111.38
6. Step 6: Final answer
   x = 533.87