Finding the Third Proportional to 1,822,817 and 3,988,912

Step by Step Solution

1. Step 1: Write the proportion equation
   1,822,817 : 3,988,912 = 3,988,912 : x
2. Step 2: Convert to fraction form
   1,822,817/3,988,912 = 3,988,912/x
3. Step 3: Cross multiply
   1,822,817x = 3,988,912 × 3,988,912
4. Step 4: Simplify right side
   1,822,817x = 15,911,418,943,744
5. Step 5: Solve for x
   x = 15,911,418,943,744/1,822,817
6. Step 6: Final answer
   x = 8,729,027.07