Finding the Third Proportional to 1,820,019 and 3,919,110

Step by Step Solution

1. Step 1: Write the proportion equation
   1,820,019 : 3,919,110 = 3,919,110 : x
2. Step 2: Convert to fraction form
   1,820,019/3,919,110 = 3,919,110/x
3. Step 3: Cross multiply
   1,820,019x = 3,919,110 × 3,919,110
4. Step 4: Simplify right side
   1,820,019x = 15,359,423,192,100
5. Step 5: Solve for x
   x = 15,359,423,192,100/1,820,019
6. Step 6: Final answer
   x = 8,439,155.41