Finding the Third Proportional to 1,638,332 and 3,591,593

Step by Step Solution

1. Step 1: Write the proportion equation
   1,638,332 : 3,591,593 = 3,591,593 : x
2. Step 2: Convert to fraction form
   1,638,332/3,591,593 = 3,591,593/x
3. Step 3: Cross multiply
   1,638,332x = 3,591,593 × 3,591,593
4. Step 4: Simplify right side
   1,638,332x = 12,899,540,277,649
5. Step 5: Solve for x
   x = 12,899,540,277,649/1,638,332
6. Step 6: Final answer
   x = 7,873,581.35