Finding the Third Proportional to 72,831 and 158,481

Step by Step Solution

1. Step 1: Write the proportion equation
   72,831 : 158,481 = 158,481 : x
2. Step 2: Convert to fraction form
   72,831/158,481 = 158,481/x
3. Step 3: Cross multiply
   72,831x = 158,481 × 158,481
4. Step 4: Simplify right side
   72,831x = 25,116,227,361
5. Step 5: Solve for x
   x = 25,116,227,361/72,831
6. Step 6: Final answer
   x = 344,856.27