Finding the Third Proportional to 3,485,685 and 5,280,692

Step by Step Solution

1. Step 1: Write the proportion equation
   3,485,685 : 5,280,692 = 5,280,692 : x
2. Step 2: Convert to fraction form
   3,485,685/5,280,692 = 5,280,692/x
3. Step 3: Cross multiply
   3,485,685x = 5,280,692 × 5,280,692
4. Step 4: Simplify right side
   3,485,685x = 27,885,707,998,864
5. Step 5: Solve for x
   x = 27,885,707,998,864/3,485,685
6. Step 6: Final answer
   x = 8,000,065.41