Finding the Third Proportional to 71,283.94 and 99,659.81

Step by Step Solution

1. Step 1: Write the proportion equation
   71,283.94 : 99,659.81 = 99,659.81 : x
2. Step 2: Convert to fraction form
   71,283.94/99,659.81 = 99,659.81/x
3. Step 3: Cross multiply
   71,283.94x = 99,659.81 × 99,659.81
4. Step 4: Simplify right side
   71,283.94x = 9,932,078,227.54
5. Step 5: Solve for x
   x = 9,932,078,227.54/71,283.94
6. Step 6: Final answer
   x = 139,331.22