Finding the Third Proportional to 4,544,982 and 9,728,386

Step by Step Solution

1. Step 1: Write the proportion equation
   4,544,982 : 9,728,386 = 9,728,386 : x
2. Step 2: Convert to fraction form
   4,544,982/9,728,386 = 9,728,386/x
3. Step 3: Cross multiply
   4,544,982x = 9,728,386 × 9,728,386
4. Step 4: Simplify right side
   4,544,982x = 94,641,494,164,996
5. Step 5: Solve for x
   x = 94,641,494,164,996/4,544,982
6. Step 6: Final answer
   x = 20,823,293.51