Finding the Third Proportional to 126,025.88 and 263,736

Step by Step Solution

1. Step 1: Write the proportion equation
   126,025.88 : 263,736 = 263,736 : x
2. Step 2: Convert to fraction form
   126,025.88/263,736 = 263,736/x
3. Step 3: Cross multiply
   126,025.88x = 263,736 × 263,736
4. Step 4: Simplify right side
   126,025.88x = 69,556,677,696
5. Step 5: Solve for x
   x = 69,556,677,696/126,025.88
6. Step 6: Final answer
   x = 551,923.78