Finding the Third Proportional to 105,939 and 168,628.50

Step by Step Solution

1. Step 1: Write the proportion equation
   105,939 : 168,628.50 = 168,628.50 : x
2. Step 2: Convert to fraction form
   105,939/168,628.50 = 168,628.50/x
3. Step 3: Cross multiply
   105,939x = 168,628.50 × 168,628.50
4. Step 4: Simplify right side
   105,939x = 28,435,571,012.25
5. Step 5: Solve for x
   x = 28,435,571,012.25/105,939
6. Step 6: Final answer
   x = 268,414.57