Finding the Third Proportional to 2,189,504 and 3,486,640

Step by Step Solution

1. Step 1: Write the proportion equation
   2,189,504 : 3,486,640 = 3,486,640 : x
2. Step 2: Convert to fraction form
   2,189,504/3,486,640 = 3,486,640/x
3. Step 3: Cross multiply
   2,189,504x = 3,486,640 × 3,486,640
4. Step 4: Simplify right side
   2,189,504x = 12,156,658,489,600
5. Step 5: Solve for x
   x = 12,156,658,489,600/2,189,504
6. Step 6: Final answer
   x = 5,552,243.11