Finding the Third Proportional to 158,786 and 245,643

Step by Step Solution

1. Step 1: Write the proportion equation
   158,786 : 245,643 = 245,643 : x
2. Step 2: Convert to fraction form
   158,786/245,643 = 245,643/x
3. Step 3: Cross multiply
   158,786x = 245,643 × 245,643
4. Step 4: Simplify right side
   158,786x = 60,340,483,449
5. Step 5: Solve for x
   x = 60,340,483,449/158,786
6. Step 6: Final answer
   x = 380,011.36