Finding the Third Proportional to 2,143,786 and 4,463,988

Step by Step Solution

1. Step 1: Write the proportion equation
   2,143,786 : 4,463,988 = 4,463,988 : x
2. Step 2: Convert to fraction form
   2,143,786/4,463,988 = 4,463,988/x
3. Step 3: Cross multiply
   2,143,786x = 4,463,988 × 4,463,988
4. Step 4: Simplify right side
   2,143,786x = 19,927,188,864,144
5. Step 5: Solve for x
   x = 19,927,188,864,144/2,143,786
6. Step 6: Final answer
   x = 9,295,325.59