Finding the Third Proportional to 89,934 and 192,990

Step by Step Solution

1. Step 1: Write the proportion equation
   89,934 : 192,990 = 192,990 : x
2. Step 2: Convert to fraction form
   89,934/192,990 = 192,990/x
3. Step 3: Cross multiply
   89,934x = 192,990 × 192,990
4. Step 4: Simplify right side
   89,934x = 37,245,140,100
5. Step 5: Solve for x
   x = 37,245,140,100/89,934
6. Step 6: Final answer
   x = 414,138.59