Finding the Third Proportional to 155,548.50 and 219,198

Step by Step Solution

1. Step 1: Write the proportion equation
   155,548.50 : 219,198 = 219,198 : x
2. Step 2: Convert to fraction form
   155,548.50/219,198 = 219,198/x
3. Step 3: Cross multiply
   155,548.50x = 219,198 × 219,198
4. Step 4: Simplify right side
   155,548.50x = 48,047,763,204
5. Step 5: Solve for x
   x = 48,047,763,204/155,548.50
6. Step 6: Final answer
   x = 308,892.49