Finding the Third Proportional to 2,175,420 and 4,665,768

Step by Step Solution

1. Step 1: Write the proportion equation
   2,175,420 : 4,665,768 = 4,665,768 : x
2. Step 2: Convert to fraction form
   2,175,420/4,665,768 = 4,665,768/x
3. Step 3: Cross multiply
   2,175,420x = 4,665,768 × 4,665,768
4. Step 4: Simplify right side
   2,175,420x = 21,769,391,029,824
5. Step 5: Solve for x
   x = 21,769,391,029,824/2,175,420
6. Step 6: Final answer
   x = 10,006,983.03