Finding the Third Proportional to 67,721.50 and 105,004.50

Step by Step Solution

1. Step 1: Write the proportion equation
   67,721.50 : 105,004.50 = 105,004.50 : x
2. Step 2: Convert to fraction form
   67,721.50/105,004.50 = 105,004.50/x
3. Step 3: Cross multiply
   67,721.50x = 105,004.50 × 105,004.50
4. Step 4: Simplify right side
   67,721.50x = 11,025,945,020.25
5. Step 5: Solve for x
   x = 11,025,945,020.25/67,721.50
6. Step 6: Final answer
   x = 162,813.07