Finding the Third Proportional to 225.25 and 498.25

Step by Step Solution

1. Step 1: Write the proportion equation
   225.25 : 498.25 = 498.25 : x
2. Step 2: Convert to fraction form
   225.25/498.25 = 498.25/x
3. Step 3: Cross multiply
   225.25x = 498.25 × 498.25
4. Step 4: Simplify right side
   225.25x = 248,253.06
5. Step 5: Solve for x
   x = 248,253.06/225.25
6. Step 6: Final answer
   x = 1,102.12