Finding the Third Proportional to 72,976 and 109,992

Step by Step Solution

1. Step 1: Write the proportion equation
   72,976 : 109,992 = 109,992 : x
2. Step 2: Convert to fraction form
   72,976/109,992 = 109,992/x
3. Step 3: Cross multiply
   72,976x = 109,992 × 109,992
4. Step 4: Simplify right side
   72,976x = 12,098,240,064
5. Step 5: Solve for x
   x = 12,098,240,064/72,976
6. Step 6: Final answer
   x = 165,783.82