Finding the Third Proportional to 1,644,328 and 3,586,676

Step by Step Solution

1. Step 1: Write the proportion equation
   1,644,328 : 3,586,676 = 3,586,676 : x
2. Step 2: Convert to fraction form
   1,644,328/3,586,676 = 3,586,676/x
3. Step 3: Cross multiply
   1,644,328x = 3,586,676 × 3,586,676
4. Step 4: Simplify right side
   1,644,328x = 12,864,244,728,976
5. Step 5: Solve for x
   x = 12,864,244,728,976/1,644,328
6. Step 6: Final answer
   x = 7,823,405.51