Finding the Third Proportional to 284,646 and 619,404

Step by Step Solution

1. Step 1: Write the proportion equation
   284,646 : 619,404 = 619,404 : x
2. Step 2: Convert to fraction form
   284,646/619,404 = 619,404/x
3. Step 3: Cross multiply
   284,646x = 619,404 × 619,404
4. Step 4: Simplify right side
   284,646x = 383,661,315,216
5. Step 5: Solve for x
   x = 383,661,315,216/284,646
6. Step 6: Final answer
   x = 1,347,854.23