Finding the Third Proportional to 9,086 and 19,858

Step by Step Solution

1. Step 1: Write the proportion equation
   9,086 : 19,858 = 19,858 : x
2. Step 2: Convert to fraction form
   9,086/19,858 = 19,858/x
3. Step 3: Cross multiply
   9,086x = 19,858 × 19,858
4. Step 4: Simplify right side
   9,086x = 394,340,164
5. Step 5: Solve for x
   x = 394,340,164/9,086
6. Step 6: Final answer
   x = 43,400.85