Finding the Third Proportional to 90,310.50 and 140,294.25

Step by Step Solution

1. Step 1: Write the proportion equation
   90,310.50 : 140,294.25 = 140,294.25 : x
2. Step 2: Convert to fraction form
   90,310.50/140,294.25 = 140,294.25/x
3. Step 3: Cross multiply
   90,310.50x = 140,294.25 × 140,294.25
4. Step 4: Simplify right side
   90,310.50x = 19,682,476,583.06
5. Step 5: Solve for x
   x = 19,682,476,583.06/90,310.50
6. Step 6: Final answer
   x = 217,942.28