Finding the Third Proportional to 2,143,615 and 4,719,028

Step by Step Solution

1. Step 1: Write the proportion equation
   2,143,615 : 4,719,028 = 4,719,028 : x
2. Step 2: Convert to fraction form
   2,143,615/4,719,028 = 4,719,028/x
3. Step 3: Cross multiply
   2,143,615x = 4,719,028 × 4,719,028
4. Step 4: Simplify right side
   2,143,615x = 22,269,225,264,784
5. Step 5: Solve for x
   x = 22,269,225,264,784/2,143,615
6. Step 6: Final answer
   x = 10,388,631.01