Finding the Third Proportional to 158,339.25 and 245,709

Step by Step Solution

1. Step 1: Write the proportion equation
   158,339.25 : 245,709 = 245,709 : x
2. Step 2: Convert to fraction form
   158,339.25/245,709 = 245,709/x
3. Step 3: Cross multiply
   158,339.25x = 245,709 × 245,709
4. Step 4: Simplify right side
   158,339.25x = 60,372,912,681
5. Step 5: Solve for x
   x = 60,372,912,681/158,339.25
6. Step 6: Final answer
   x = 381,288.36