Finding the Third Proportional to 3,485,409 and 7,641,570

Step by Step Solution

1. Step 1: Write the proportion equation
   3,485,409 : 7,641,570 = 7,641,570 : x
2. Step 2: Convert to fraction form
   3,485,409/7,641,570 = 7,641,570/x
3. Step 3: Cross multiply
   3,485,409x = 7,641,570 × 7,641,570
4. Step 4: Simplify right side
   3,485,409x = 58,393,592,064,900
5. Step 5: Solve for x
   x = 58,393,592,064,900/3,485,409
6. Step 6: Final answer
   x = 16,753,727.34