Finding the Third Proportional to 4,638,802 and 9,408,036

Step by Step Solution

1. Step 1: Write the proportion equation
   4,638,802 : 9,408,036 = 9,408,036 : x
2. Step 2: Convert to fraction form
   4,638,802/9,408,036 = 9,408,036/x
3. Step 3: Cross multiply
   4,638,802x = 9,408,036 × 9,408,036
4. Step 4: Simplify right side
   4,638,802x = 88,511,141,377,296
5. Step 5: Solve for x
   x = 88,511,141,377,296/4,638,802
6. Step 6: Final answer
   x = 19,080,603.44