Finding the Third Proportional to 124,942 and 199,834

Step by Step Solution

1. Step 1: Write the proportion equation
   124,942 : 199,834 = 199,834 : x
2. Step 2: Convert to fraction form
   124,942/199,834 = 199,834/x
3. Step 3: Cross multiply
   124,942x = 199,834 × 199,834
4. Step 4: Simplify right side
   124,942x = 39,933,627,556
5. Step 5: Solve for x
   x = 39,933,627,556/124,942
6. Step 6: Final answer
   x = 319,617.32