Finding the Third Proportional to 1,644,280 and 3,587,355

Step by Step Solution

1. Step 1: Write the proportion equation
   1,644,280 : 3,587,355 = 3,587,355 : x
2. Step 2: Convert to fraction form
   1,644,280/3,587,355 = 3,587,355/x
3. Step 3: Cross multiply
   1,644,280x = 3,587,355 × 3,587,355
4. Step 4: Simplify right side
   1,644,280x = 12,869,115,896,025
5. Step 5: Solve for x
   x = 12,869,115,896,025/1,644,280
6. Step 6: Final answer
   x = 7,826,596.38