Finding the Third Proportional to 253,144.50 and 356,031

Step by Step Solution

1. Step 1: Write the proportion equation
   253,144.50 : 356,031 = 356,031 : x
2. Step 2: Convert to fraction form
   253,144.50/356,031 = 356,031/x
3. Step 3: Cross multiply
   253,144.50x = 356,031 × 356,031
4. Step 4: Simplify right side
   253,144.50x = 126,758,072,961
5. Step 5: Solve for x
   x = 126,758,072,961/253,144.50
6. Step 6: Final answer
   x = 500,734.06