Finding the Third Proportional to 158,142 and 231,622.50

Step by Step Solution

1. Step 1: Write the proportion equation
   158,142 : 231,622.50 = 231,622.50 : x
2. Step 2: Convert to fraction form
   158,142/231,622.50 = 231,622.50/x
3. Step 3: Cross multiply
   158,142x = 231,622.50 × 231,622.50
4. Step 4: Simplify right side
   158,142x = 53,648,982,506.25
5. Step 5: Solve for x
   x = 53,648,982,506.25/158,142
6. Step 6: Final answer
   x = 339,245.63