Finding the Third Proportional to 140,945 and 218,383.50

Step by Step Solution

1. Step 1: Write the proportion equation
   140,945 : 218,383.50 = 218,383.50 : x
2. Step 2: Convert to fraction form
   140,945/218,383.50 = 218,383.50/x
3. Step 3: Cross multiply
   140,945x = 218,383.50 × 218,383.50
4. Step 4: Simplify right side
   140,945x = 47,691,353,072.25
5. Step 5: Solve for x
   x = 47,691,353,072.25/140,945
6. Step 6: Final answer
   x = 338,368.53