Finding the Third Proportional to 143,829 and 215,635.50

Step by Step Solution

1. Step 1: Write the proportion equation
   143,829 : 215,635.50 = 215,635.50 : x
2. Step 2: Convert to fraction form
   143,829/215,635.50 = 215,635.50/x
3. Step 3: Cross multiply
   143,829x = 215,635.50 × 215,635.50
4. Step 4: Simplify right side
   143,829x = 46,498,668,860.25
5. Step 5: Solve for x
   x = 46,498,668,860.25/143,829
6. Step 6: Final answer
   x = 323,291.33