Finding the Third Proportional to 140,304 and 217,693.50

Step by Step Solution

1. Step 1: Write the proportion equation
   140,304 : 217,693.50 = 217,693.50 : x
2. Step 2: Convert to fraction form
   140,304/217,693.50 = 217,693.50/x
3. Step 3: Cross multiply
   140,304x = 217,693.50 × 217,693.50
4. Step 4: Simplify right side
   140,304x = 47,390,459,942.25
5. Step 5: Solve for x
   x = 47,390,459,942.25/140,304
6. Step 6: Final answer
   x = 337,769.84