Finding the Third Proportional to 126,309.38 and 190,772.72

Step by Step Solution

1. Step 1: Write the proportion equation
   126,309.38 : 190,772.72 = 190,772.72 : x
2. Step 2: Convert to fraction form
   126,309.38/190,772.72 = 190,772.72/x
3. Step 3: Cross multiply
   126,309.38x = 190,772.72 × 190,772.72
4. Step 4: Simplify right side
   126,309.38x = 36,394,230,219.27
5. Step 5: Solve for x
   x = 36,394,230,219.27/126,309.38
6. Step 6: Final answer
   x = 288,135.62