Finding the Third Proportional to 67,615.50 and 144,277.50

Step by Step Solution

1. Step 1: Write the proportion equation
   67,615.50 : 144,277.50 = 144,277.50 : x
2. Step 2: Convert to fraction form
   67,615.50/144,277.50 = 144,277.50/x
3. Step 3: Cross multiply
   67,615.50x = 144,277.50 × 144,277.50
4. Step 4: Simplify right side
   67,615.50x = 20,815,997,006.25
5. Step 5: Solve for x
   x = 20,815,997,006.25/67,615.50
6. Step 6: Final answer
   x = 307,858.36