Finding the Third Proportional to 67,819.50 and 146,571.75

Step by Step Solution

1. Step 1: Write the proportion equation
   67,819.50 : 146,571.75 = 146,571.75 : x
2. Step 2: Convert to fraction form
   67,819.50/146,571.75 = 146,571.75/x
3. Step 3: Cross multiply
   67,819.50x = 146,571.75 × 146,571.75
4. Step 4: Simplify right side
   67,819.50x = 21,483,277,898.06
5. Step 5: Solve for x
   x = 21,483,277,898.06/67,819.50
6. Step 6: Final answer
   x = 316,771.40