Finding the Third Proportional to 10,991 and 17,047

Step by Step Solution

1. Step 1: Write the proportion equation
   10,991 : 17,047 = 17,047 : x
2. Step 2: Convert to fraction form
   10,991/17,047 = 17,047/x
3. Step 3: Cross multiply
   10,991x = 17,047 × 17,047
4. Step 4: Simplify right side
   10,991x = 290,600,209
5. Step 5: Solve for x
   x = 290,600,209/10,991
6. Step 6: Final answer
   x = 26,439.83