Finding the Third Proportional to 88,686 and 188,872

Step by Step Solution

1. Step 1: Write the proportion equation
   88,686 : 188,872 = 188,872 : x
2. Step 2: Convert to fraction form
   88,686/188,872 = 188,872/x
3. Step 3: Cross multiply
   88,686x = 188,872 × 188,872
4. Step 4: Simplify right side
   88,686x = 35,672,632,384
5. Step 5: Solve for x
   x = 35,672,632,384/88,686
6. Step 6: Final answer
   x = 402,235.22