Finding the Third Proportional to 105,148.13 and 158,815.69

Step by Step Solution

1. Step 1: Write the proportion equation
   105,148.13 : 158,815.69 = 158,815.69 : x
2. Step 2: Convert to fraction form
   105,148.13/158,815.69 = 158,815.69/x
3. Step 3: Cross multiply
   105,148.13x = 158,815.69 × 158,815.69
4. Step 4: Simplify right side
   105,148.13x = 25,222,422,596.10
5. Step 5: Solve for x
   x = 25,222,422,596.10/105,148.13
6. Step 6: Final answer
   x = 239,875.15