Finding the Third Proportional to 19,128.56 and 26,889.56

Step by Step Solution

1. Step 1: Write the proportion equation
   19,128.56 : 26,889.56 = 26,889.56 : x
2. Step 2: Convert to fraction form
   19,128.56/26,889.56 = 26,889.56/x
3. Step 3: Cross multiply
   19,128.56x = 26,889.56 × 26,889.56
4. Step 4: Simplify right side
   19,128.56x = 723,048,571.44
5. Step 5: Solve for x
   x = 723,048,571.44/19,128.56
6. Step 6: Final answer
   x = 37,799.42