Finding the Third Proportional to 1,813,708 and 3,958,988

Step by Step Solution

1. Step 1: Write the proportion equation
   1,813,708 : 3,958,988 = 3,958,988 : x
2. Step 2: Convert to fraction form
   1,813,708/3,958,988 = 3,958,988/x
3. Step 3: Cross multiply
   1,813,708x = 3,958,988 × 3,958,988
4. Step 4: Simplify right side
   1,813,708x = 15,673,585,984,144
5. Step 5: Solve for x
   x = 15,673,585,984,144/1,813,708
6. Step 6: Final answer
   x = 8,641,736.15