Finding the Third Proportional to 1,644,270 and 3,587,343

Step by Step Solution

1. Step 1: Write the proportion equation
   1,644,270 : 3,587,343 = 3,587,343 : x
2. Step 2: Convert to fraction form
   1,644,270/3,587,343 = 3,587,343/x
3. Step 3: Cross multiply
   1,644,270x = 3,587,343 × 3,587,343
4. Step 4: Simplify right side
   1,644,270x = 12,869,029,799,649
5. Step 5: Solve for x
   x = 12,869,029,799,649/1,644,270
6. Step 6: Final answer
   x = 7,826,591.62