Finding the Third Proportional to 8,455 and 13,047

Step by Step Solution

1. Step 1: Write the proportion equation
   8,455 : 13,047 = 13,047 : x
2. Step 2: Convert to fraction form
   8,455/13,047 = 13,047/x
3. Step 3: Cross multiply
   8,455x = 13,047 × 13,047
4. Step 4: Simplify right side
   8,455x = 170,224,209
5. Step 5: Solve for x
   x = 170,224,209/8,455
6. Step 6: Final answer
   x = 20,132.96