Finding the Third Proportional to 123,552 and 198,936

Step by Step Solution

1. Step 1: Write the proportion equation
   123,552 : 198,936 = 198,936 : x
2. Step 2: Convert to fraction form
   123,552/198,936 = 198,936/x
3. Step 3: Cross multiply
   123,552x = 198,936 × 198,936
4. Step 4: Simplify right side
   123,552x = 39,575,532,096
5. Step 5: Solve for x
   x = 39,575,532,096/123,552
6. Step 6: Final answer
   x = 320,314.78