Finding the Third Proportional to 1,822,719 and 3,988,702

Step by Step Solution

1. Step 1: Write the proportion equation
   1,822,719 : 3,988,702 = 3,988,702 : x
2. Step 2: Convert to fraction form
   1,822,719/3,988,702 = 3,988,702/x
3. Step 3: Cross multiply
   1,822,719x = 3,988,702 × 3,988,702
4. Step 4: Simplify right side
   1,822,719x = 15,909,743,644,804
5. Step 5: Solve for x
   x = 15,909,743,644,804/1,822,719
6. Step 6: Final answer
   x = 8,728,577.28