Finding the Third Proportional to 67,380.75 and 142,976.25

Step by Step Solution

1. Step 1: Write the proportion equation
   67,380.75 : 142,976.25 = 142,976.25 : x
2. Step 2: Convert to fraction form
   67,380.75/142,976.25 = 142,976.25/x
3. Step 3: Cross multiply
   67,380.75x = 142,976.25 × 142,976.25
4. Step 4: Simplify right side
   67,380.75x = 20,442,208,064.06
5. Step 5: Solve for x
   x = 20,442,208,064.06/67,380.75
6. Step 6: Final answer
   x = 303,383.50