Finding the Third Proportional to 1,161,821 and 2,516,638

Step by Step Solution

1. Step 1: Write the proportion equation
   1,161,821 : 2,516,638 = 2,516,638 : x
2. Step 2: Convert to fraction form
   1,161,821/2,516,638 = 2,516,638/x
3. Step 3: Cross multiply
   1,161,821x = 2,516,638 × 2,516,638
4. Step 4: Simplify right side
   1,161,821x = 6,333,466,823,044
5. Step 5: Solve for x
   x = 6,333,466,823,044/1,161,821
6. Step 6: Final answer
   x = 5,451,327.55