Finding the Third Proportional to 105,389 and 158,087

Step by Step Solution

1. Step 1: Write the proportion equation
   105,389 : 158,087 = 158,087 : x
2. Step 2: Convert to fraction form
   105,389/158,087 = 158,087/x
3. Step 3: Cross multiply
   105,389x = 158,087 × 158,087
4. Step 4: Simplify right side
   105,389x = 24,991,499,569
5. Step 5: Solve for x
   x = 24,991,499,569/105,389
6. Step 6: Final answer
   x = 237,135.75