Finding the Third Proportional to 2,169,831 and 4,725,405

Step by Step Solution

1. Step 1: Write the proportion equation
   2,169,831 : 4,725,405 = 4,725,405 : x
2. Step 2: Convert to fraction form
   2,169,831/4,725,405 = 4,725,405/x
3. Step 3: Cross multiply
   2,169,831x = 4,725,405 × 4,725,405
4. Step 4: Simplify right side
   2,169,831x = 22,329,452,414,025
5. Step 5: Solve for x
   x = 22,329,452,414,025/2,169,831
6. Step 6: Final answer
   x = 10,290,871.69