Finding the Third Proportional to 142,467 and 219,868.50

Step by Step Solution

1. Step 1: Write the proportion equation
   142,467 : 219,868.50 = 219,868.50 : x
2. Step 2: Convert to fraction form
   142,467/219,868.50 = 219,868.50/x
3. Step 3: Cross multiply
   142,467x = 219,868.50 × 219,868.50
4. Step 4: Simplify right side
   142,467x = 48,342,157,292.25
5. Step 5: Solve for x
   x = 48,342,157,292.25/142,467
6. Step 6: Final answer
   x = 339,321.79