Finding the Third Proportional to 33,231 and 70,215

Step by Step Solution

1. Step 1: Write the proportion equation
   33,231 : 70,215 = 70,215 : x
2. Step 2: Convert to fraction form
   33,231/70,215 = 70,215/x
3. Step 3: Cross multiply
   33,231x = 70,215 × 70,215
4. Step 4: Simplify right side
   33,231x = 4,930,146,225
5. Step 5: Solve for x
   x = 4,930,146,225/33,231
6. Step 6: Final answer
   x = 148,359.85