Finding the Third Proportional to 2,274,640 and 4,485,128

Step by Step Solution

1. Step 1: Write the proportion equation
   2,274,640 : 4,485,128 = 4,485,128 : x
2. Step 2: Convert to fraction form
   2,274,640/4,485,128 = 4,485,128/x
3. Step 3: Cross multiply
   2,274,640x = 4,485,128 × 4,485,128
4. Step 4: Simplify right side
   2,274,640x = 20,116,373,176,384
5. Step 5: Solve for x
   x = 20,116,373,176,384/2,274,640
6. Step 6: Final answer
   x = 8,843,761.29