Finding the Third Proportional to 2,198,018 and 4,665,604

Step by Step Solution

1. Step 1: Write the proportion equation
   2,198,018 : 4,665,604 = 4,665,604 : x
2. Step 2: Convert to fraction form
   2,198,018/4,665,604 = 4,665,604/x
3. Step 3: Cross multiply
   2,198,018x = 4,665,604 × 4,665,604
4. Step 4: Simplify right side
   2,198,018x = 21,767,860,684,816
5. Step 5: Solve for x
   x = 21,767,860,684,816/2,198,018
6. Step 6: Final answer
   x = 9,903,404.20