Finding the Third Proportional to 623,736 and 1,321,884

Step by Step Solution

1. Step 1: Write the proportion equation
   623,736 : 1,321,884 = 1,321,884 : x
2. Step 2: Convert to fraction form
   623,736/1,321,884 = 1,321,884/x
3. Step 3: Cross multiply
   623,736x = 1,321,884 × 1,321,884
4. Step 4: Simplify right side
   623,736x = 1,747,377,309,456
5. Step 5: Solve for x
   x = 1,747,377,309,456/623,736
6. Step 6: Final answer
   x = 2,801,469.39