Finding the Third Proportional to 1,283,856 and 1,986,860

Step by Step Solution

1. Step 1: Write the proportion equation
   1,283,856 : 1,986,860 = 1,986,860 : x
2. Step 2: Convert to fraction form
   1,283,856/1,986,860 = 1,986,860/x
3. Step 3: Cross multiply
   1,283,856x = 1,986,860 × 1,986,860
4. Step 4: Simplify right side
   1,283,856x = 3,947,612,659,600
5. Step 5: Solve for x
   x = 3,947,612,659,600/1,283,856
6. Step 6: Final answer
   x = 3,074,809.53