Finding the Third Proportional to 309,299.50 and 341,861.50

Step by Step Solution

1. Step 1: Write the proportion equation
   309,299.50 : 341,861.50 = 341,861.50 : x
2. Step 2: Convert to fraction form
   309,299.50/341,861.50 = 341,861.50/x
3. Step 3: Cross multiply
   309,299.50x = 341,861.50 × 341,861.50
4. Step 4: Simplify right side
   309,299.50x = 116,869,285,182.25
5. Step 5: Solve for x
   x = 116,869,285,182.25/309,299.50
6. Step 6: Final answer
   x = 377,851.52