Finding the Third Proportional to 90,200 and 192,912

Step by Step Solution

1. Step 1: Write the proportion equation
   90,200 : 192,912 = 192,912 : x
2. Step 2: Convert to fraction form
   90,200/192,912 = 192,912/x
3. Step 3: Cross multiply
   90,200x = 192,912 × 192,912
4. Step 4: Simplify right side
   90,200x = 37,215,039,744
5. Step 5: Solve for x
   x = 37,215,039,744/90,200
6. Step 6: Final answer
   x = 412,583.59