Finding the Third Proportional to 1,486,728 and 3,258,144

Step by Step Solution

1. Step 1: Write the proportion equation
   1,486,728 : 3,258,144 = 3,258,144 : x
2. Step 2: Convert to fraction form
   1,486,728/3,258,144 = 3,258,144/x
3. Step 3: Cross multiply
   1,486,728x = 3,258,144 × 3,258,144
4. Step 4: Simplify right side
   1,486,728x = 10,615,502,324,736
5. Step 5: Solve for x
   x = 10,615,502,324,736/1,486,728
6. Step 6: Final answer
   x = 7,140,177.84