Finding the Third Proportional to 13,786.50 and 21,911

Step by Step Solution

1. Step 1: Write the proportion equation
   13,786.50 : 21,911 = 21,911 : x
2. Step 2: Convert to fraction form
   13,786.50/21,911 = 21,911/x
3. Step 3: Cross multiply
   13,786.50x = 21,911 × 21,911
4. Step 4: Simplify right side
   13,786.50x = 480,091,921
5. Step 5: Solve for x
   x = 480,091,921/13,786.50
6. Step 6: Final answer
   x = 34,823.34