Finding the Third Proportional to 2,398,408 and 3,690,240

Step by Step Solution

1. Step 1: Write the proportion equation
   2,398,408 : 3,690,240 = 3,690,240 : x
2. Step 2: Convert to fraction form
   2,398,408/3,690,240 = 3,690,240/x
3. Step 3: Cross multiply
   2,398,408x = 3,690,240 × 3,690,240
4. Step 4: Simplify right side
   2,398,408x = 13,617,871,257,600
5. Step 5: Solve for x
   x = 13,617,871,257,600/2,398,408
6. Step 6: Final answer
   x = 5,677,879.35