Finding the Third Proportional to 1,283,638 and 1,986,612

Step by Step Solution

1. Step 1: Write the proportion equation
   1,283,638 : 1,986,612 = 1,986,612 : x
2. Step 2: Convert to fraction form
   1,283,638/1,986,612 = 1,986,612/x
3. Step 3: Cross multiply
   1,283,638x = 1,986,612 × 1,986,612
4. Step 4: Simplify right side
   1,283,638x = 3,946,627,238,544
5. Step 5: Solve for x
   x = 3,946,627,238,544/1,283,638
6. Step 6: Final answer
   x = 3,074,564.04