Finding the Third Proportional to 3,485,659 and 5,280,653

Step by Step Solution

1. Step 1: Write the proportion equation
   3,485,659 : 5,280,653 = 5,280,653 : x
2. Step 2: Convert to fraction form
   3,485,659/5,280,653 = 5,280,653/x
3. Step 3: Cross multiply
   3,485,659x = 5,280,653 × 5,280,653
4. Step 4: Simplify right side
   3,485,659x = 27,885,296,106,409
5. Step 5: Solve for x
   x = 27,885,296,106,409/3,485,659
6. Step 6: Final answer
   x = 8,000,006.92