Finding the Third Proportional to 2,169,638 and 4,665,806

Step by Step Solution

1. Step 1: Write the proportion equation
   2,169,638 : 4,665,806 = 4,665,806 : x
2. Step 2: Convert to fraction form
   2,169,638/4,665,806 = 4,665,806/x
3. Step 3: Cross multiply
   2,169,638x = 4,665,806 × 4,665,806
4. Step 4: Simplify right side
   2,169,638x = 21,769,745,629,636
5. Step 5: Solve for x
   x = 21,769,745,629,636/2,169,638
6. Step 6: Final answer
   x = 10,033,814.69