Finding the Third Proportional to 4,647,790 and 7,105,456

Step by Step Solution

1. Step 1: Write the proportion equation
   4,647,790 : 7,105,456 = 7,105,456 : x
2. Step 2: Convert to fraction form
   4,647,790/7,105,456 = 7,105,456/x
3. Step 3: Cross multiply
   4,647,790x = 7,105,456 × 7,105,456
4. Step 4: Simplify right side
   4,647,790x = 50,487,504,967,936
5. Step 5: Solve for x
   x = 50,487,504,967,936/4,647,790
6. Step 6: Final answer
   x = 10,862,690.65