Finding the Third Proportional to 67,386.94 and 144,615.38

Step by Step Solution

1. Step 1: Write the proportion equation
   67,386.94 : 144,615.38 = 144,615.38 : x
2. Step 2: Convert to fraction form
   67,386.94/144,615.38 = 144,615.38/x
3. Step 3: Cross multiply
   67,386.94x = 144,615.38 × 144,615.38
4. Step 4: Simplify right side
   67,386.94x = 20,913,606,686.39
5. Step 5: Solve for x
   x = 20,913,606,686.39/67,386.94
6. Step 6: Final answer
   x = 310,351.05