Finding the Third Proportional to 225.25 and 492.50

Step by Step Solution

1. Step 1: Write the proportion equation
   225.25 : 492.50 = 492.50 : x
2. Step 2: Convert to fraction form
   225.25/492.50 = 492.50/x
3. Step 3: Cross multiply
   225.25x = 492.50 × 492.50
4. Step 4: Simplify right side
   225.25x = 242,556.25
5. Step 5: Solve for x
   x = 242,556.25/225.25
6. Step 6: Final answer
   x = 1,076.83