Finding the Third Proportional to 11,329.50 and 12,261

Step by Step Solution

1. Step 1: Write the proportion equation
   11,329.50 : 12,261 = 12,261 : x
2. Step 2: Convert to fraction form
   11,329.50/12,261 = 12,261/x
3. Step 3: Cross multiply
   11,329.50x = 12,261 × 12,261
4. Step 4: Simplify right side
   11,329.50x = 150,332,121
5. Step 5: Solve for x
   x = 150,332,121/11,329.50
6. Step 6: Final answer
   x = 13,269.09