Finding the Third Proportional to 9,136.13 and 12,519.56

Step by Step Solution

1. Step 1: Write the proportion equation
   9,136.13 : 12,519.56 = 12,519.56 : x
2. Step 2: Convert to fraction form
   9,136.13/12,519.56 = 12,519.56/x
3. Step 3: Cross multiply
   9,136.13x = 12,519.56 × 12,519.56
4. Step 4: Simplify right side
   9,136.13x = 156,739,445.19
5. Step 5: Solve for x
   x = 156,739,445.19/9,136.13
6. Step 6: Final answer
   x = 17,156.01