Finding the Third Proportional to 300,704 and 663,616

Step by Step Solution

1. Step 1: Write the proportion equation
   300,704 : 663,616 = 663,616 : x
2. Step 2: Convert to fraction form
   300,704/663,616 = 663,616/x
3. Step 3: Cross multiply
   300,704x = 663,616 × 663,616
4. Step 4: Simplify right side
   300,704x = 440,386,195,456
5. Step 5: Solve for x
   x = 440,386,195,456/300,704
6. Step 6: Final answer
   x = 1,464,517.25