Finding the Third Proportional to 67,155.75 and 140,764.50

Step by Step Solution

1. Step 1: Write the proportion equation
   67,155.75 : 140,764.50 = 140,764.50 : x
2. Step 2: Convert to fraction form
   67,155.75/140,764.50 = 140,764.50/x
3. Step 3: Cross multiply
   67,155.75x = 140,764.50 × 140,764.50
4. Step 4: Simplify right side
   67,155.75x = 19,814,644,460.25
5. Step 5: Solve for x
   x = 19,814,644,460.25/67,155.75
6. Step 6: Final answer
   x = 295,055.07