Finding the Third Proportional to 89,760 and 188,808

Step by Step Solution

1. Step 1: Write the proportion equation
   89,760 : 188,808 = 188,808 : x
2. Step 2: Convert to fraction form
   89,760/188,808 = 188,808/x
3. Step 3: Cross multiply
   89,760x = 188,808 × 188,808
4. Step 4: Simplify right side
   89,760x = 35,648,460,864
5. Step 5: Solve for x
   x = 35,648,460,864/89,760
6. Step 6: Final answer
   x = 397,153.08