Finding the Third Proportional to 228,976 and 498,678

Step by Step Solution

1. Step 1: Write the proportion equation
   228,976 : 498,678 = 498,678 : x
2. Step 2: Convert to fraction form
   228,976/498,678 = 498,678/x
3. Step 3: Cross multiply
   228,976x = 498,678 × 498,678
4. Step 4: Simplify right side
   228,976x = 248,679,747,684
5. Step 5: Solve for x
   x = 248,679,747,684/228,976
6. Step 6: Final answer
   x = 1,086,051.58