Finding the Third Proportional to 1,397,866 and 3,285,769

Step by Step Solution

1. Step 1: Write the proportion equation
   1,397,866 : 3,285,769 = 3,285,769 : x
2. Step 2: Convert to fraction form
   1,397,866/3,285,769 = 3,285,769/x
3. Step 3: Cross multiply
   1,397,866x = 3,285,769 × 3,285,769
4. Step 4: Simplify right side
   1,397,866x = 10,796,277,921,361
5. Step 5: Solve for x
   x = 10,796,277,921,361/1,397,866
6. Step 6: Final answer
   x = 7,723,399.75