Finding the Third Proportional to 18,136.69 and 27,726.19

Step by Step Solution

1. Step 1: Write the proportion equation
   18,136.69 : 27,726.19 = 27,726.19 : x
2. Step 2: Convert to fraction form
   18,136.69/27,726.19 = 27,726.19/x
3. Step 3: Cross multiply
   18,136.69x = 27,726.19 × 27,726.19
4. Step 4: Simplify right side
   18,136.69x = 768,741,473.29
5. Step 5: Solve for x
   x = 768,741,473.29/18,136.69
6. Step 6: Final answer
   x = 42,385.99