Finding the Third Proportional to 4,131,478 and 8,949,028

Step by Step Solution

1. Step 1: Write the proportion equation
   4,131,478 : 8,949,028 = 8,949,028 : x
2. Step 2: Convert to fraction form
   4,131,478/8,949,028 = 8,949,028/x
3. Step 3: Cross multiply
   4,131,478x = 8,949,028 × 8,949,028
4. Step 4: Simplify right side
   4,131,478x = 80,085,102,144,784
5. Step 5: Solve for x
   x = 80,085,102,144,784/4,131,478
6. Step 6: Final answer
   x = 19,384,128.91