Finding the Third Proportional to 158,092 and 231,215

Step by Step Solution

1. Step 1: Write the proportion equation
   158,092 : 231,215 = 231,215 : x
2. Step 2: Convert to fraction form
   158,092/231,215 = 231,215/x
3. Step 3: Cross multiply
   158,092x = 231,215 × 231,215
4. Step 4: Simplify right side
   158,092x = 53,460,376,225
5. Step 5: Solve for x
   x = 53,460,376,225/158,092
6. Step 6: Final answer
   x = 338,159.91