Finding the Third Proportional to 90,282 and 140,449.50

Step by Step Solution

1. Step 1: Write the proportion equation
   90,282 : 140,449.50 = 140,449.50 : x
2. Step 2: Convert to fraction form
   90,282/140,449.50 = 140,449.50/x
3. Step 3: Cross multiply
   90,282x = 140,449.50 × 140,449.50
4. Step 4: Simplify right side
   90,282x = 19,726,062,050.25
5. Step 5: Solve for x
   x = 19,726,062,050.25/90,282
6. Step 6: Final answer
   x = 218,493.85