Finding the Third Proportional to 1,806,900 and 3,928,716

Step by Step Solution

1. Step 1: Write the proportion equation
   1,806,900 : 3,928,716 = 3,928,716 : x
2. Step 2: Convert to fraction form
   1,806,900/3,928,716 = 3,928,716/x
3. Step 3: Cross multiply
   1,806,900x = 3,928,716 × 3,928,716
4. Step 4: Simplify right side
   1,806,900x = 15,434,809,408,656
5. Step 5: Solve for x
   x = 15,434,809,408,656/1,806,900
6. Step 6: Final answer
   x = 8,542,149.21