Finding the Third Proportional to 4,057,289 and 8,567,287

Step by Step Solution

1. Step 1: Write the proportion equation
   4,057,289 : 8,567,287 = 8,567,287 : x
2. Step 2: Convert to fraction form
   4,057,289/8,567,287 = 8,567,287/x
3. Step 3: Cross multiply
   4,057,289x = 8,567,287 × 8,567,287
4. Step 4: Simplify right side
   4,057,289x = 73,398,406,540,369
5. Step 5: Solve for x
   x = 73,398,406,540,369/4,057,289
6. Step 6: Final answer
   x = 18,090,504.90