Finding the Third Proportional to 67,216.50 and 146,661

Step by Step Solution

1. Step 1: Write the proportion equation
   67,216.50 : 146,661 = 146,661 : x
2. Step 2: Convert to fraction form
   67,216.50/146,661 = 146,661/x
3. Step 3: Cross multiply
   67,216.50x = 146,661 × 146,661
4. Step 4: Simplify right side
   67,216.50x = 21,509,448,921
5. Step 5: Solve for x
   x = 21,509,448,921/67,216.50
6. Step 6: Final answer
   x = 320,002.51