Finding the Third Proportional to 2,143,643 and 4,719,084

Step by Step Solution

1. Step 1: Write the proportion equation
   2,143,643 : 4,719,084 = 4,719,084 : x
2. Step 2: Convert to fraction form
   2,143,643/4,719,084 = 4,719,084/x
3. Step 3: Cross multiply
   2,143,643x = 4,719,084 × 4,719,084
4. Step 4: Simplify right side
   2,143,643x = 22,269,753,799,056
5. Step 5: Solve for x
   x = 22,269,753,799,056/2,143,643
6. Step 6: Final answer
   x = 10,388,741.87