Finding the Third Proportional to 67,071.94 and 142,139.81

Step by Step Solution

1. Step 1: Write the proportion equation
   67,071.94 : 142,139.81 = 142,139.81 : x
2. Step 2: Convert to fraction form
   67,071.94/142,139.81 = 142,139.81/x
3. Step 3: Cross multiply
   67,071.94x = 142,139.81 × 142,139.81
4. Step 4: Simplify right side
   67,071.94x = 20,203,726,297.54
5. Step 5: Solve for x
   x = 20,203,726,297.54/67,071.94
6. Step 6: Final answer
   x = 301,224.73