Finding the Third Proportional to 146,108 and 197,990

Step by Step Solution

1. Step 1: Write the proportion equation
   146,108 : 197,990 = 197,990 : x
2. Step 2: Convert to fraction form
   146,108/197,990 = 197,990/x
3. Step 3: Cross multiply
   146,108x = 197,990 × 197,990
4. Step 4: Simplify right side
   146,108x = 39,200,040,100
5. Step 5: Solve for x
   x = 39,200,040,100/146,108
6. Step 6: Final answer
   x = 268,294.96