Finding the Third Proportional to 331,871 and 728,253.50

Step by Step Solution

1. Step 1: Write the proportion equation
   331,871 : 728,253.50 = 728,253.50 : x
2. Step 2: Convert to fraction form
   331,871/728,253.50 = 728,253.50/x
3. Step 3: Cross multiply
   331,871x = 728,253.50 × 728,253.50
4. Step 4: Simplify right side
   331,871x = 530,353,160,262.25
5. Step 5: Solve for x
   x = 530,353,160,262.25/331,871
6. Step 6: Final answer
   x = 1,598,070.21