Finding the Third Proportional to 2,059,643 and 4,485,439

Step by Step Solution

1. Step 1: Write the proportion equation
   2,059,643 : 4,485,439 = 4,485,439 : x
2. Step 2: Convert to fraction form
   2,059,643/4,485,439 = 4,485,439/x
3. Step 3: Cross multiply
   2,059,643x = 4,485,439 × 4,485,439
4. Step 4: Simplify right side
   2,059,643x = 20,119,163,022,721
5. Step 5: Solve for x
   x = 20,119,163,022,721/2,059,643
6. Step 6: Final answer
   x = 9,768,276.84