Finding the Third Proportional to 336,160.50 and 728,328

Step by Step Solution

1. Step 1: Write the proportion equation
   336,160.50 : 728,328 = 728,328 : x
2. Step 2: Convert to fraction form
   336,160.50/728,328 = 728,328/x
3. Step 3: Cross multiply
   336,160.50x = 728,328 × 728,328
4. Step 4: Simplify right side
   336,160.50x = 530,461,675,584
5. Step 5: Solve for x
   x = 530,461,675,584/336,160.50
6. Step 6: Final answer
   x = 1,578,001.21