Finding the Third Proportional to 126,904.50 and 272,947.50

Step by Step Solution

1. Step 1: Write the proportion equation
   126,904.50 : 272,947.50 = 272,947.50 : x
2. Step 2: Convert to fraction form
   126,904.50/272,947.50 = 272,947.50/x
3. Step 3: Cross multiply
   126,904.50x = 272,947.50 × 272,947.50
4. Step 4: Simplify right side
   126,904.50x = 74,500,337,756.25
5. Step 5: Solve for x
   x = 74,500,337,756.25/126,904.50
6. Step 6: Final answer
   x = 587,058.28