Finding the Third Proportional to 158,558 and 245,560

Step by Step Solution

1. Step 1: Write the proportion equation
   158,558 : 245,560 = 245,560 : x
2. Step 2: Convert to fraction form
   158,558/245,560 = 245,560/x
3. Step 3: Cross multiply
   158,558x = 245,560 × 245,560
4. Step 4: Simplify right side
   158,558x = 60,299,713,600
5. Step 5: Solve for x
   x = 60,299,713,600/158,558
6. Step 6: Final answer
   x = 380,300.67