Finding the Third Proportional to 143,017 and 214,249.50

Step by Step Solution

1. Step 1: Write the proportion equation
   143,017 : 214,249.50 = 214,249.50 : x
2. Step 2: Convert to fraction form
   143,017/214,249.50 = 214,249.50/x
3. Step 3: Cross multiply
   143,017x = 214,249.50 × 214,249.50
4. Step 4: Simplify right side
   143,017x = 45,902,848,250.25
5. Step 5: Solve for x
   x = 45,902,848,250.25/143,017
6. Step 6: Final answer
   x = 320,960.78