Finding the Third Proportional to 1,859,862 and 3,942,912

Step by Step Solution

1. Step 1: Write the proportion equation
   1,859,862 : 3,942,912 = 3,942,912 : x
2. Step 2: Convert to fraction form
   1,859,862/3,942,912 = 3,942,912/x
3. Step 3: Cross multiply
   1,859,862x = 3,942,912 × 3,942,912
4. Step 4: Simplify right side
   1,859,862x = 15,546,555,039,744
5. Step 5: Solve for x
   x = 15,546,555,039,744/1,859,862
6. Step 6: Final answer
   x = 8,358,983.11