Finding the Third Proportional to 649,818 and 1,351,638

Step by Step Solution

1. Step 1: Write the proportion equation
   649,818 : 1,351,638 = 1,351,638 : x
2. Step 2: Convert to fraction form
   649,818/1,351,638 = 1,351,638/x
3. Step 3: Cross multiply
   649,818x = 1,351,638 × 1,351,638
4. Step 4: Simplify right side
   649,818x = 1,826,925,283,044
5. Step 5: Solve for x
   x = 1,826,925,283,044/649,818
6. Step 6: Final answer
   x = 2,811,441.49