Finding the Third Proportional to 10,891.50 and 12,025.50

Step by Step Solution

1. Step 1: Write the proportion equation
   10,891.50 : 12,025.50 = 12,025.50 : x
2. Step 2: Convert to fraction form
   10,891.50/12,025.50 = 12,025.50/x
3. Step 3: Cross multiply
   10,891.50x = 12,025.50 × 12,025.50
4. Step 4: Simplify right side
   10,891.50x = 144,612,650.25
5. Step 5: Solve for x
   x = 144,612,650.25/10,891.50
6. Step 6: Final answer
   x = 13,277.57