Finding the Third Proportional to 1,200,378 and 1,858,067

Step by Step Solution

1. Step 1: Write the proportion equation
   1,200,378 : 1,858,067 = 1,858,067 : x
2. Step 2: Convert to fraction form
   1,200,378/1,858,067 = 1,858,067/x
3. Step 3: Cross multiply
   1,200,378x = 1,858,067 × 1,858,067
4. Step 4: Simplify right side
   1,200,378x = 3,452,412,976,489
5. Step 5: Solve for x
   x = 3,452,412,976,489/1,200,378
6. Step 6: Final answer
   x = 2,876,104.84