Finding the Third Proportional to 40,279 and 87,550

Step by Step Solution

1. Step 1: Write the proportion equation
   40,279 : 87,550 = 87,550 : x
2. Step 2: Convert to fraction form
   40,279/87,550 = 87,550/x
3. Step 3: Cross multiply
   40,279x = 87,550 × 87,550
4. Step 4: Simplify right side
   40,279x = 7,665,002,500
5. Step 5: Solve for x
   x = 7,665,002,500/40,279
6. Step 6: Final answer
   x = 190,297.74