Finding the Third Proportional to 153,015.50 and 331,441

Step by Step Solution

1. Step 1: Write the proportion equation
   153,015.50 : 331,441 = 331,441 : x
2. Step 2: Convert to fraction form
   153,015.50/331,441 = 331,441/x
3. Step 3: Cross multiply
   153,015.50x = 331,441 × 331,441
4. Step 4: Simplify right side
   153,015.50x = 109,853,136,481
5. Step 5: Solve for x
   x = 109,853,136,481/153,015.50
6. Step 6: Final answer
   x = 717,921.63