Finding the Third Proportional to 158,812.50 and 245,721

Step by Step Solution

1. Step 1: Write the proportion equation
   158,812.50 : 245,721 = 245,721 : x
2. Step 2: Convert to fraction form
   158,812.50/245,721 = 245,721/x
3. Step 3: Cross multiply
   158,812.50x = 245,721 × 245,721
4. Step 4: Simplify right side
   158,812.50x = 60,378,809,841
5. Step 5: Solve for x
   x = 60,378,809,841/158,812.50
6. Step 6: Final answer
   x = 380,189.28