Finding the Third Proportional to 90,318 and 140,304

Step by Step Solution

1. Step 1: Write the proportion equation
   90,318 : 140,304 = 140,304 : x
2. Step 2: Convert to fraction form
   90,318/140,304 = 140,304/x
3. Step 3: Cross multiply
   90,318x = 140,304 × 140,304
4. Step 4: Simplify right side
   90,318x = 19,685,212,416
5. Step 5: Solve for x
   x = 19,685,212,416/90,318
6. Step 6: Final answer
   x = 217,954.48