Finding the Third Proportional to 158,578.86 and 245,379.16

Step by Step Solution

1. Step 1: Write the proportion equation
   158,578.86 : 245,379.16 = 245,379.16 : x
2. Step 2: Convert to fraction form
   158,578.86/245,379.16 = 245,379.16/x
3. Step 3: Cross multiply
   158,578.86x = 245,379.16 × 245,379.16
4. Step 4: Simplify right side
   158,578.86x = 60,210,930,921.03
5. Step 5: Solve for x
   x = 60,210,930,921.03/158,578.86
6. Step 6: Final answer
   x = 379,690.79