Finding the Third Proportional to 3,790,664 and 8,948,456

Step by Step Solution

1. Step 1: Write the proportion equation
   3,790,664 : 8,948,456 = 8,948,456 : x
2. Step 2: Convert to fraction form
   3,790,664/8,948,456 = 8,948,456/x
3. Step 3: Cross multiply
   3,790,664x = 8,948,456 × 8,948,456
4. Step 4: Simplify right side
   3,790,664x = 80,074,864,783,936
5. Step 5: Solve for x
   x = 80,074,864,783,936/3,790,664
6. Step 6: Final answer
   x = 21,124,231.74