Finding the Third Proportional to 67,474.50 and 144,292.50

Step by Step Solution

1. Step 1: Write the proportion equation
   67,474.50 : 144,292.50 = 144,292.50 : x
2. Step 2: Convert to fraction form
   67,474.50/144,292.50 = 144,292.50/x
3. Step 3: Cross multiply
   67,474.50x = 144,292.50 × 144,292.50
4. Step 4: Simplify right side
   67,474.50x = 20,820,325,556.25
5. Step 5: Solve for x
   x = 20,820,325,556.25/67,474.50
6. Step 6: Final answer
   x = 308,565.84