Finding the Third Proportional to 1,662,720 and 3,591,120

Step by Step Solution

1. Step 1: Write the proportion equation
   1,662,720 : 3,591,120 = 3,591,120 : x
2. Step 2: Convert to fraction form
   1,662,720/3,591,120 = 3,591,120/x
3. Step 3: Cross multiply
   1,662,720x = 3,591,120 × 3,591,120
4. Step 4: Simplify right side
   1,662,720x = 12,896,142,854,400
5. Step 5: Solve for x
   x = 12,896,142,854,400/1,662,720
6. Step 6: Final answer
   x = 7,756,052.04