Finding the Third Proportional to 126,716.91 and 294,648.89

Step by Step Solution

1. Step 1: Write the proportion equation
   126,716.91 : 294,648.89 = 294,648.89 : x
2. Step 2: Convert to fraction form
   126,716.91/294,648.89 = 294,648.89/x
3. Step 3: Cross multiply
   126,716.91x = 294,648.89 × 294,648.89
4. Step 4: Simplify right side
   126,716.91x = 86,817,968,746.54
5. Step 5: Solve for x
   x = 86,817,968,746.54/126,716.91
6. Step 6: Final answer
   x = 685,133.27