Finding the Third Proportional to 126,168 and 187,429.50

Step by Step Solution

1. Step 1: Write the proportion equation
   126,168 : 187,429.50 = 187,429.50 : x
2. Step 2: Convert to fraction form
   126,168/187,429.50 = 187,429.50/x
3. Step 3: Cross multiply
   126,168x = 187,429.50 × 187,429.50
4. Step 4: Simplify right side
   126,168x = 35,129,817,470.25
5. Step 5: Solve for x
   x = 35,129,817,470.25/126,168
6. Step 6: Final answer
   x = 278,436.83