Finding the Third Proportional to 72,744 and 109,387

Step by Step Solution

1. Step 1: Write the proportion equation
   72,744 : 109,387 = 109,387 : x
2. Step 2: Convert to fraction form
   72,744/109,387 = 109,387/x
3. Step 3: Cross multiply
   72,744x = 109,387 × 109,387
4. Step 4: Simplify right side
   72,744x = 11,965,515,769
5. Step 5: Solve for x
   x = 11,965,515,769/72,744
6. Step 6: Final answer
   x = 164,488.01