Finding the Third Proportional to 12,955.50 and 27,211.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,955.50 : 27,211.50 = 27,211.50 : x
2. Step 2: Convert to fraction form
   12,955.50/27,211.50 = 27,211.50/x
3. Step 3: Cross multiply
   12,955.50x = 27,211.50 × 27,211.50
4. Step 4: Simplify right side
   12,955.50x = 740,465,732.25
5. Step 5: Solve for x
   x = 740,465,732.25/12,955.50
6. Step 6: Final answer
   x = 57,154.55