Finding the Third Proportional to 605,408 and 1,284,612

Step by Step Solution

1. Step 1: Write the proportion equation
   605,408 : 1,284,612 = 1,284,612 : x
2. Step 2: Convert to fraction form
   605,408/1,284,612 = 1,284,612/x
3. Step 3: Cross multiply
   605,408x = 1,284,612 × 1,284,612
4. Step 4: Simplify right side
   605,408x = 1,650,227,990,544
5. Step 5: Solve for x
   x = 1,650,227,990,544/605,408
6. Step 6: Final answer
   x = 2,725,811.34