Finding the Third Proportional to 90,900 and 192,600

Step by Step Solution

1. Step 1: Write the proportion equation
   90,900 : 192,600 = 192,600 : x
2. Step 2: Convert to fraction form
   90,900/192,600 = 192,600/x
3. Step 3: Cross multiply
   90,900x = 192,600 × 192,600
4. Step 4: Simplify right side
   90,900x = 37,094,760,000
5. Step 5: Solve for x
   x = 37,094,760,000/90,900
6. Step 6: Final answer
   x = 408,083.17