Finding the Third Proportional to 10,681.56 and 19,927.90

Step by Step Solution

1. Step 1: Write the proportion equation
   10,681.56 : 19,927.90 = 19,927.90 : x
2. Step 2: Convert to fraction form
   10,681.56/19,927.90 = 19,927.90/x
3. Step 3: Cross multiply
   10,681.56x = 19,927.90 × 19,927.90
4. Step 4: Simplify right side
   10,681.56x = 397,121,136.14
5. Step 5: Solve for x
   x = 397,121,136.14/10,681.56
6. Step 6: Final answer
   x = 37,178.20