Finding the Third Proportional to 1,205,820 and 1,919,430

Step by Step Solution

1. Step 1: Write the proportion equation
   1,205,820 : 1,919,430 = 1,919,430 : x
2. Step 2: Convert to fraction form
   1,205,820/1,919,430 = 1,919,430/x
3. Step 3: Cross multiply
   1,205,820x = 1,919,430 × 1,919,430
4. Step 4: Simplify right side
   1,205,820x = 3,684,211,524,900
5. Step 5: Solve for x
   x = 3,684,211,524,900/1,205,820
6. Step 6: Final answer
   x = 3,055,357.79