Finding the Third Proportional to 3,485,666 and 5,280,662

Step by Step Solution

1. Step 1: Write the proportion equation
   3,485,666 : 5,280,662 = 5,280,662 : x
2. Step 2: Convert to fraction form
   3,485,666/5,280,662 = 5,280,662/x
3. Step 3: Cross multiply
   3,485,666x = 5,280,662 × 5,280,662
4. Step 4: Simplify right side
   3,485,666x = 27,885,391,158,244
5. Step 5: Solve for x
   x = 27,885,391,158,244/3,485,666
6. Step 6: Final answer
   x = 8,000,018.12