Finding the Third Proportional to 12,136.50 and 16,386.75

Step by Step Solution

1. Step 1: Write the proportion equation
   12,136.50 : 16,386.75 = 16,386.75 : x
2. Step 2: Convert to fraction form
   12,136.50/16,386.75 = 16,386.75/x
3. Step 3: Cross multiply
   12,136.50x = 16,386.75 × 16,386.75
4. Step 4: Simplify right side
   12,136.50x = 268,525,575.56
5. Step 5: Solve for x
   x = 268,525,575.56/12,136.50
6. Step 6: Final answer
   x = 22,125.45