Finding the Third Proportional to 9,111.75 and 13,674.75

Step by Step Solution

1. Step 1: Write the proportion equation
   9,111.75 : 13,674.75 = 13,674.75 : x
2. Step 2: Convert to fraction form
   9,111.75/13,674.75 = 13,674.75/x
3. Step 3: Cross multiply
   9,111.75x = 13,674.75 × 13,674.75
4. Step 4: Simplify right side
   9,111.75x = 186,998,787.56
5. Step 5: Solve for x
   x = 186,998,787.56/9,111.75
6. Step 6: Final answer
   x = 20,522.82