Finding the Third Proportional to 8,513 and 13,134

Step by Step Solution

1. Step 1: Write the proportion equation
   8,513 : 13,134 = 13,134 : x
2. Step 2: Convert to fraction form
   8,513/13,134 = 13,134/x
3. Step 3: Cross multiply
   8,513x = 13,134 × 13,134
4. Step 4: Simplify right side
   8,513x = 172,501,956
5. Step 5: Solve for x
   x = 172,501,956/8,513
6. Step 6: Final answer
   x = 20,263.36