Finding the Third Proportional to 105,844.50 and 162,139.50

Step by Step Solution

1. Step 1: Write the proportion equation
   105,844.50 : 162,139.50 = 162,139.50 : x
2. Step 2: Convert to fraction form
   105,844.50/162,139.50 = 162,139.50/x
3. Step 3: Cross multiply
   105,844.50x = 162,139.50 × 162,139.50
4. Step 4: Simplify right side
   105,844.50x = 26,289,217,460.25
5. Step 5: Solve for x
   x = 26,289,217,460.25/105,844.50
6. Step 6: Final answer
   x = 248,375.85