Finding the Third Proportional to 3,408,644 and 5,426,443

Step by Step Solution

1. Step 1: Write the proportion equation
   3,408,644 : 5,426,443 = 5,426,443 : x
2. Step 2: Convert to fraction form
   3,408,644/5,426,443 = 5,426,443/x
3. Step 3: Cross multiply
   3,408,644x = 5,426,443 × 5,426,443
4. Step 4: Simplify right side
   3,408,644x = 29,446,283,632,249
5. Step 5: Solve for x
   x = 29,446,283,632,249/3,408,644
6. Step 6: Final answer
   x = 8,638,709.01