Finding the Third Proportional to 131,978 and 179,309

Step by Step Solution

1. Step 1: Write the proportion equation
   131,978 : 179,309 = 179,309 : x
2. Step 2: Convert to fraction form
   131,978/179,309 = 179,309/x
3. Step 3: Cross multiply
   131,978x = 179,309 × 179,309
4. Step 4: Simplify right side
   131,978x = 32,151,717,481
5. Step 5: Solve for x
   x = 32,151,717,481/131,978
6. Step 6: Final answer
   x = 243,614.22