Finding the Third Proportional to 158,729 and 215,571

Step by Step Solution

1. Step 1: Write the proportion equation
   158,729 : 215,571 = 215,571 : x
2. Step 2: Convert to fraction form
   158,729/215,571 = 215,571/x
3. Step 3: Cross multiply
   158,729x = 215,571 × 215,571
4. Step 4: Simplify right side
   158,729x = 46,470,856,041
5. Step 5: Solve for x
   x = 46,470,856,041/158,729
6. Step 6: Final answer
   x = 292,768.53