Finding the Third Proportional to 72,908 and 158,992

Step by Step Solution

1. Step 1: Write the proportion equation
   72,908 : 158,992 = 158,992 : x
2. Step 2: Convert to fraction form
   72,908/158,992 = 158,992/x
3. Step 3: Cross multiply
   72,908x = 158,992 × 158,992
4. Step 4: Simplify right side
   72,908x = 25,278,456,064
5. Step 5: Solve for x
   x = 25,278,456,064/72,908
6. Step 6: Final answer
   x = 346,717.18