Finding the Third Proportional to 3,988,022 and 8,697,834

Step by Step Solution

1. Step 1: Write the proportion equation
   3,988,022 : 8,697,834 = 8,697,834 : x
2. Step 2: Convert to fraction form
   3,988,022/8,697,834 = 8,697,834/x
3. Step 3: Cross multiply
   3,988,022x = 8,697,834 × 8,697,834
4. Step 4: Simplify right side
   3,988,022x = 75,652,316,291,556
5. Step 5: Solve for x
   x = 75,652,316,291,556/3,988,022
6. Step 6: Final answer
   x = 18,969,884.39