Finding the Third Proportional to 90,267 and 140,398.50

Step by Step Solution

1. Step 1: Write the proportion equation
   90,267 : 140,398.50 = 140,398.50 : x
2. Step 2: Convert to fraction form
   90,267/140,398.50 = 140,398.50/x
3. Step 3: Cross multiply
   90,267x = 140,398.50 × 140,398.50
4. Step 4: Simplify right side
   90,267x = 19,711,738,802.25
5. Step 5: Solve for x
   x = 19,711,738,802.25/90,267
6. Step 6: Final answer
   x = 218,371.48