Finding the Third Proportional to 3,485,696 and 5,280,709

Step by Step Solution

1. Step 1: Write the proportion equation
   3,485,696 : 5,280,709 = 5,280,709 : x
2. Step 2: Convert to fraction form
   3,485,696/5,280,709 = 5,280,709/x
3. Step 3: Cross multiply
   3,485,696x = 5,280,709 × 5,280,709
4. Step 4: Simplify right side
   3,485,696x = 27,885,887,542,681
5. Step 5: Solve for x
   x = 27,885,887,542,681/3,485,696
6. Step 6: Final answer
   x = 8,000,091.67