Finding the Third Proportional to 328,951.50 and 683,760

Step by Step Solution

1. Step 1: Write the proportion equation
   328,951.50 : 683,760 = 683,760 : x
2. Step 2: Convert to fraction form
   328,951.50/683,760 = 683,760/x
3. Step 3: Cross multiply
   328,951.50x = 683,760 × 683,760
4. Step 4: Simplify right side
   328,951.50x = 467,527,737,600
5. Step 5: Solve for x
   x = 467,527,737,600/328,951.50
6. Step 6: Final answer
   x = 1,421,266.47