Finding the Third Proportional to 72,703 and 109,419

Step by Step Solution

1. Step 1: Write the proportion equation
   72,703 : 109,419 = 109,419 : x
2. Step 2: Convert to fraction form
   72,703/109,419 = 109,419/x
3. Step 3: Cross multiply
   72,703x = 109,419 × 109,419
4. Step 4: Simplify right side
   72,703x = 11,972,517,561
5. Step 5: Solve for x
   x = 11,972,517,561/72,703
6. Step 6: Final answer
   x = 164,677.08