Finding the Third Proportional to 2,143,622 and 4,719,039

Step by Step Solution

1. Step 1: Write the proportion equation
   2,143,622 : 4,719,039 = 4,719,039 : x
2. Step 2: Convert to fraction form
   2,143,622/4,719,039 = 4,719,039/x
3. Step 3: Cross multiply
   2,143,622x = 4,719,039 × 4,719,039
4. Step 4: Simplify right side
   2,143,622x = 22,269,329,083,521
5. Step 5: Solve for x
   x = 22,269,329,083,521/2,143,622
6. Step 6: Final answer
   x = 10,388,645.52