Finding the Third Proportional to 1,806,906 and 3,928,728

Step by Step Solution

1. Step 1: Write the proportion equation
   1,806,906 : 3,928,728 = 3,928,728 : x
2. Step 2: Convert to fraction form
   1,806,906/3,928,728 = 3,928,728/x
3. Step 3: Cross multiply
   1,806,906x = 3,928,728 × 3,928,728
4. Step 4: Simplify right side
   1,806,906x = 15,434,903,697,984
5. Step 5: Solve for x
   x = 15,434,903,697,984/1,806,906
6. Step 6: Final answer
   x = 8,542,173.03