Finding the Third Proportional to 2,147,390 and 4,631,024

Step by Step Solution

1. Step 1: Write the proportion equation
   2,147,390 : 4,631,024 = 4,631,024 : x
2. Step 2: Convert to fraction form
   2,147,390/4,631,024 = 4,631,024/x
3. Step 3: Cross multiply
   2,147,390x = 4,631,024 × 4,631,024
4. Step 4: Simplify right side
   2,147,390x = 21,446,383,288,576
5. Step 5: Solve for x
   x = 21,446,383,288,576/2,147,390
6. Step 6: Final answer
   x = 9,987,185.97