Finding the Third Proportional to 3,995,584 and 8,629,608

Step by Step Solution

1. Step 1: Write the proportion equation
   3,995,584 : 8,629,608 = 8,629,608 : x
2. Step 2: Convert to fraction form
   3,995,584/8,629,608 = 8,629,608/x
3. Step 3: Cross multiply
   3,995,584x = 8,629,608 × 8,629,608
4. Step 4: Simplify right side
   3,995,584x = 74,470,134,233,664
5. Step 5: Solve for x
   x = 74,470,134,233,664/3,995,584
6. Step 6: Final answer
   x = 18,638,110.03