Finding the Third Proportional to 1,822,742 and 3,988,600

Step by Step Solution

1. Step 1: Write the proportion equation
   1,822,742 : 3,988,600 = 3,988,600 : x
2. Step 2: Convert to fraction form
   1,822,742/3,988,600 = 3,988,600/x
3. Step 3: Cross multiply
   1,822,742x = 3,988,600 × 3,988,600
4. Step 4: Simplify right side
   1,822,742x = 15,908,929,960,000
5. Step 5: Solve for x
   x = 15,908,929,960,000/1,822,742
6. Step 6: Final answer
   x = 8,728,020.73