Finding the Third Proportional to 3,485,662 and 5,280,656

Step by Step Solution

1. Step 1: Write the proportion equation
   3,485,662 : 5,280,656 = 5,280,656 : x
2. Step 2: Convert to fraction form
   3,485,662/5,280,656 = 5,280,656/x
3. Step 3: Cross multiply
   3,485,662x = 5,280,656 × 5,280,656
4. Step 4: Simplify right side
   3,485,662x = 27,885,327,790,336
5. Step 5: Solve for x
   x = 27,885,327,790,336/3,485,662
6. Step 6: Final answer
   x = 8,000,009.12