Finding the Third Proportional to 90,736 and 192,488

Step by Step Solution

1. Step 1: Write the proportion equation
   90,736 : 192,488 = 192,488 : x
2. Step 2: Convert to fraction form
   90,736/192,488 = 192,488/x
3. Step 3: Cross multiply
   90,736x = 192,488 × 192,488
4. Step 4: Simplify right side
   90,736x = 37,051,630,144
5. Step 5: Solve for x
   x = 37,051,630,144/90,736
6. Step 6: Final answer
   x = 408,345.42