Finding the Third Proportional to 12,132.75 and 26,128.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,132.75 : 26,128.50 = 26,128.50 : x
2. Step 2: Convert to fraction form
   12,132.75/26,128.50 = 26,128.50/x
3. Step 3: Cross multiply
   12,132.75x = 26,128.50 × 26,128.50
4. Step 4: Simplify right side
   12,132.75x = 682,698,512.25
5. Step 5: Solve for x
   x = 682,698,512.25/12,132.75
6. Step 6: Final answer
   x = 56,269.07