Finding the Third Proportional to 31,384.97 and 73,287.28

Step by Step Solution

1. Step 1: Write the proportion equation
   31,384.97 : 73,287.28 = 73,287.28 : x
2. Step 2: Convert to fraction form
   31,384.97/73,287.28 = 73,287.28/x
3. Step 3: Cross multiply
   31,384.97x = 73,287.28 × 73,287.28
4. Step 4: Simplify right side
   31,384.97x = 5,371,025,593.02
5. Step 5: Solve for x
   x = 5,371,025,593.02/31,384.97
6. Step 6: Final answer
   x = 171,133.69