Finding the Third Proportional to 59,251.50 and 139,866.75

Step by Step Solution

1. Step 1: Write the proportion equation
   59,251.50 : 139,866.75 = 139,866.75 : x
2. Step 2: Convert to fraction form
   59,251.50/139,866.75 = 139,866.75/x
3. Step 3: Cross multiply
   59,251.50x = 139,866.75 × 139,866.75
4. Step 4: Simplify right side
   59,251.50x = 19,562,707,755.56
5. Step 5: Solve for x
   x = 19,562,707,755.56/59,251.50
6. Step 6: Final answer
   x = 330,163.92