Finding the Third Proportional to 68,323.50 and 144,454.50

Step by Step Solution

1. Step 1: Write the proportion equation
   68,323.50 : 144,454.50 = 144,454.50 : x
2. Step 2: Convert to fraction form
   68,323.50/144,454.50 = 144,454.50/x
3. Step 3: Cross multiply
   68,323.50x = 144,454.50 × 144,454.50
4. Step 4: Simplify right side
   68,323.50x = 20,867,102,570.25
5. Step 5: Solve for x
   x = 20,867,102,570.25/68,323.50
6. Step 6: Final answer
   x = 305,416.18