Finding the Third Proportional to 90,554 and 192,788

Step by Step Solution

1. Step 1: Write the proportion equation
   90,554 : 192,788 = 192,788 : x
2. Step 2: Convert to fraction form
   90,554/192,788 = 192,788/x
3. Step 3: Cross multiply
   90,554x = 192,788 × 192,788
4. Step 4: Simplify right side
   90,554x = 37,167,212,944
5. Step 5: Solve for x
   x = 37,167,212,944/90,554
6. Step 6: Final answer
   x = 410,442.53