Finding the Third Proportional to 112.22 and 243.28

Step by Step Solution

1. Step 1: Write the proportion equation
   112.22 : 243.28 = 243.28 : x
2. Step 2: Convert to fraction form
   112.22/243.28 = 243.28/x
3. Step 3: Cross multiply
   112.22x = 243.28 × 243.28
4. Step 4: Simplify right side
   112.22x = 59,185.77
5. Step 5: Solve for x
   x = 59,185.77/112.22
6. Step 6: Final answer
   x = 527.41