Finding the Third Proportional to 141,292.50 and 198,019.50

Step by Step Solution

1. Step 1: Write the proportion equation
   141,292.50 : 198,019.50 = 198,019.50 : x
2. Step 2: Convert to fraction form
   141,292.50/198,019.50 = 198,019.50/x
3. Step 3: Cross multiply
   141,292.50x = 198,019.50 × 198,019.50
4. Step 4: Simplify right side
   141,292.50x = 39,211,722,380.25
5. Step 5: Solve for x
   x = 39,211,722,380.25/141,292.50
6. Step 6: Final answer
   x = 277,521.61