Finding the Third Proportional to 1,507,816 and 3,286,728

Step by Step Solution

1. Step 1: Write the proportion equation
   1,507,816 : 3,286,728 = 3,286,728 : x
2. Step 2: Convert to fraction form
   1,507,816/3,286,728 = 3,286,728/x
3. Step 3: Cross multiply
   1,507,816x = 3,286,728 × 3,286,728
4. Step 4: Simplify right side
   1,507,816x = 10,802,580,945,984
5. Step 5: Solve for x
   x = 10,802,580,945,984/1,507,816
6. Step 6: Final answer
   x = 7,164,389.39