Finding the Third Proportional to 4,263,980 and 9,275,055

Step by Step Solution

1. Step 1: Write the proportion equation
   4,263,980 : 9,275,055 = 9,275,055 : x
2. Step 2: Convert to fraction form
   4,263,980/9,275,055 = 9,275,055/x
3. Step 3: Cross multiply
   4,263,980x = 9,275,055 × 9,275,055
4. Step 4: Simplify right side
   4,263,980x = 86,026,645,253,025
5. Step 5: Solve for x
   x = 86,026,645,253,025/4,263,980
6. Step 6: Final answer
   x = 20,175,199.05