Finding the Third Proportional to 155,502 and 339,979.50

Step by Step Solution

1. Step 1: Write the proportion equation
   155,502 : 339,979.50 = 339,979.50 : x
2. Step 2: Convert to fraction form
   155,502/339,979.50 = 339,979.50/x
3. Step 3: Cross multiply
   155,502x = 339,979.50 × 339,979.50
4. Step 4: Simplify right side
   155,502x = 115,586,060,420.25
5. Step 5: Solve for x
   x = 115,586,060,420.25/155,502
6. Step 6: Final answer
   x = 743,309.16