Finding the Third Proportional to 4,972,638 and 7,018,844

Step by Step Solution

1. Step 1: Write the proportion equation
   4,972,638 : 7,018,844 = 7,018,844 : x
2. Step 2: Convert to fraction form
   4,972,638/7,018,844 = 7,018,844/x
3. Step 3: Cross multiply
   4,972,638x = 7,018,844 × 7,018,844
4. Step 4: Simplify right side
   4,972,638x = 49,264,171,096,336
5. Step 5: Solve for x
   x = 49,264,171,096,336/4,972,638
6. Step 6: Final answer
   x = 9,907,049.56