Finding the Third Proportional to 89,700 and 188,694

Step by Step Solution

1. Step 1: Write the proportion equation
   89,700 : 188,694 = 188,694 : x
2. Step 2: Convert to fraction form
   89,700/188,694 = 188,694/x
3. Step 3: Cross multiply
   89,700x = 188,694 × 188,694
4. Step 4: Simplify right side
   89,700x = 35,605,425,636
5. Step 5: Solve for x
   x = 35,605,425,636/89,700
6. Step 6: Final answer
   x = 396,938.97