Finding the Third Proportional to 3,881,554 and 8,422,852

Step by Step Solution

1. Step 1: Write the proportion equation
   3,881,554 : 8,422,852 = 8,422,852 : x
2. Step 2: Convert to fraction form
   3,881,554/8,422,852 = 8,422,852/x
3. Step 3: Cross multiply
   3,881,554x = 8,422,852 × 8,422,852
4. Step 4: Simplify right side
   3,881,554x = 70,944,435,813,904
5. Step 5: Solve for x
   x = 70,944,435,813,904/3,881,554
6. Step 6: Final answer
   x = 18,277,328.05