Finding the Third Proportional to 1,820,270 and 3,958,228

Step by Step Solution

1. Step 1: Write the proportion equation
   1,820,270 : 3,958,228 = 3,958,228 : x
2. Step 2: Convert to fraction form
   1,820,270/3,958,228 = 3,958,228/x
3. Step 3: Cross multiply
   1,820,270x = 3,958,228 × 3,958,228
4. Step 4: Simplify right side
   1,820,270x = 15,667,568,899,984
5. Step 5: Solve for x
   x = 15,667,568,899,984/1,820,270
6. Step 6: Final answer
   x = 8,607,277.44