Finding the Third Proportional to 228,424 and 490,868

Step by Step Solution

1. Step 1: Write the proportion equation
   228,424 : 490,868 = 490,868 : x
2. Step 2: Convert to fraction form
   228,424/490,868 = 490,868/x
3. Step 3: Cross multiply
   228,424x = 490,868 × 490,868
4. Step 4: Simplify right side
   228,424x = 240,951,393,424
5. Step 5: Solve for x
   x = 240,951,393,424/228,424
6. Step 6: Final answer
   x = 1,054,842.72