Finding the Third Proportional to 72,219.38 and 161,035.31

Step by Step Solution

1. Step 1: Write the proportion equation
   72,219.38 : 161,035.31 = 161,035.31 : x
2. Step 2: Convert to fraction form
   72,219.38/161,035.31 = 161,035.31/x
3. Step 3: Cross multiply
   72,219.38x = 161,035.31 × 161,035.31
4. Step 4: Simplify right side
   72,219.38x = 25,932,371,871.97
5. Step 5: Solve for x
   x = 25,932,371,871.97/72,219.38
6. Step 6: Final answer
   x = 359,077.77