Finding the Third Proportional to 68,103.25 and 144,397.50

Step by Step Solution

1. Step 1: Write the proportion equation
   68,103.25 : 144,397.50 = 144,397.50 : x
2. Step 2: Convert to fraction form
   68,103.25/144,397.50 = 144,397.50/x
3. Step 3: Cross multiply
   68,103.25x = 144,397.50 × 144,397.50
4. Step 4: Simplify right side
   68,103.25x = 20,850,638,006.25
5. Step 5: Solve for x
   x = 20,850,638,006.25/68,103.25
6. Step 6: Final answer
   x = 306,162.16