Finding the Third Proportional to 219,379 and 331,768.50

Step by Step Solution

1. Step 1: Write the proportion equation
   219,379 : 331,768.50 = 331,768.50 : x
2. Step 2: Convert to fraction form
   219,379/331,768.50 = 331,768.50/x
3. Step 3: Cross multiply
   219,379x = 331,768.50 × 331,768.50
4. Step 4: Simplify right side
   219,379x = 110,070,337,592.25
5. Step 5: Solve for x
   x = 110,070,337,592.25/219,379
6. Step 6: Final answer
   x = 501,735.98