Finding the Third Proportional to 4,991 and 10,905

Step by Step Solution

1. Step 1: Write the proportion equation
   4,991 : 10,905 = 10,905 : x
2. Step 2: Convert to fraction form
   4,991/10,905 = 10,905/x
3. Step 3: Cross multiply
   4,991x = 10,905 × 10,905
4. Step 4: Simplify right side
   4,991x = 118,919,025
5. Step 5: Solve for x
   x = 118,919,025/4,991
6. Step 6: Final answer
   x = 23,826.69