Finding the Third Proportional to 67,147.50 and 144,805

Step by Step Solution

1. Step 1: Write the proportion equation
   67,147.50 : 144,805 = 144,805 : x
2. Step 2: Convert to fraction form
   67,147.50/144,805 = 144,805/x
3. Step 3: Cross multiply
   67,147.50x = 144,805 × 144,805
4. Step 4: Simplify right side
   67,147.50x = 20,968,488,025
5. Step 5: Solve for x
   x = 20,968,488,025/67,147.50
6. Step 6: Final answer
   x = 312,275.04