Finding the Third Proportional to 228,980 and 498,686

Step by Step Solution

1. Step 1: Write the proportion equation
   228,980 : 498,686 = 498,686 : x
2. Step 2: Convert to fraction form
   228,980/498,686 = 498,686/x
3. Step 3: Cross multiply
   228,980x = 498,686 × 498,686
4. Step 4: Simplify right side
   228,980x = 248,687,726,596
5. Step 5: Solve for x
   x = 248,687,726,596/228,980
6. Step 6: Final answer
   x = 1,086,067.46