Finding the Third Proportional to 153,123.50 and 225,309

Step by Step Solution

1. Step 1: Write the proportion equation
   153,123.50 : 225,309 = 225,309 : x
2. Step 2: Convert to fraction form
   153,123.50/225,309 = 225,309/x
3. Step 3: Cross multiply
   153,123.50x = 225,309 × 225,309
4. Step 4: Simplify right side
   153,123.50x = 50,764,145,481
5. Step 5: Solve for x
   x = 50,764,145,481/153,123.50
6. Step 6: Final answer
   x = 331,524.20