Finding the Third Proportional to 140,992 and 215,956

Step by Step Solution

1. Step 1: Write the proportion equation
   140,992 : 215,956 = 215,956 : x
2. Step 2: Convert to fraction form
   140,992/215,956 = 215,956/x
3. Step 3: Cross multiply
   140,992x = 215,956 × 215,956
4. Step 4: Simplify right side
   140,992x = 46,636,993,936
5. Step 5: Solve for x
   x = 46,636,993,936/140,992
6. Step 6: Final answer
   x = 330,777.59