Finding the Third Proportional to 225,990 and 492,500.25

Step by Step Solution

1. Step 1: Write the proportion equation
   225,990 : 492,500.25 = 492,500.25 : x
2. Step 2: Convert to fraction form
   225,990/492,500.25 = 492,500.25/x
3. Step 3: Cross multiply
   225,990x = 492,500.25 × 492,500.25
4. Step 4: Simplify right side
   225,990x = 242,556,496,250.06
5. Step 5: Solve for x
   x = 242,556,496,250.06/225,990
6. Step 6: Final answer
   x = 1,073,306.32