Finding the Third Proportional to 140,512.50 and 214,270

Step by Step Solution

1. Step 1: Write the proportion equation
   140,512.50 : 214,270 = 214,270 : x
2. Step 2: Convert to fraction form
   140,512.50/214,270 = 214,270/x
3. Step 3: Cross multiply
   140,512.50x = 214,270 × 214,270
4. Step 4: Simplify right side
   140,512.50x = 45,911,632,900
5. Step 5: Solve for x
   x = 45,911,632,900/140,512.50
6. Step 6: Final answer
   x = 326,744.12