Finding the Third Proportional to 19,139.25 and 27,219.75

Step by Step Solution

1. Step 1: Write the proportion equation
   19,139.25 : 27,219.75 = 27,219.75 : x
2. Step 2: Convert to fraction form
   19,139.25/27,219.75 = 27,219.75/x
3. Step 3: Cross multiply
   19,139.25x = 27,219.75 × 27,219.75
4. Step 4: Simplify right side
   19,139.25x = 740,914,790.06
5. Step 5: Solve for x
   x = 740,914,790.06/19,139.25
6. Step 6: Final answer
   x = 38,711.80