Finding the Third Proportional to 245,018 and 500,404

Step by Step Solution

1. Step 1: Write the proportion equation
   245,018 : 500,404 = 500,404 : x
2. Step 2: Convert to fraction form
   245,018/500,404 = 500,404/x
3. Step 3: Cross multiply
   245,018x = 500,404 × 500,404
4. Step 4: Simplify right side
   245,018x = 250,404,163,216
5. Step 5: Solve for x
   x = 250,404,163,216/245,018
6. Step 6: Final answer
   x = 1,021,982.72