Finding the Third Proportional to 126,959 and 273,291.50

Step by Step Solution

1. Step 1: Write the proportion equation
   126,959 : 273,291.50 = 273,291.50 : x
2. Step 2: Convert to fraction form
   126,959/273,291.50 = 273,291.50/x
3. Step 3: Cross multiply
   126,959x = 273,291.50 × 273,291.50
4. Step 4: Simplify right side
   126,959x = 74,688,243,972.25
5. Step 5: Solve for x
   x = 74,688,243,972.25/126,959
6. Step 6: Final answer
   x = 588,286.33