Finding the Third Proportional to 155,500.50 and 339,108

Step by Step Solution

1. Step 1: Write the proportion equation
   155,500.50 : 339,108 = 339,108 : x
2. Step 2: Convert to fraction form
   155,500.50/339,108 = 339,108/x
3. Step 3: Cross multiply
   155,500.50x = 339,108 × 339,108
4. Step 4: Simplify right side
   155,500.50x = 114,994,235,664
5. Step 5: Solve for x
   x = 114,994,235,664/155,500.50
6. Step 6: Final answer
   x = 739,510.39