Finding the Third Proportional to 158,307 and 250,665

Step by Step Solution

1. Step 1: Write the proportion equation
   158,307 : 250,665 = 250,665 : x
2. Step 2: Convert to fraction form
   158,307/250,665 = 250,665/x
3. Step 3: Cross multiply
   158,307x = 250,665 × 250,665
4. Step 4: Simplify right side
   158,307x = 62,832,942,225
5. Step 5: Solve for x
   x = 62,832,942,225/158,307
6. Step 6: Final answer
   x = 396,905.65