Finding the Third Proportional to 19,480 and 27,760.50

Step by Step Solution

1. Step 1: Write the proportion equation
   19,480 : 27,760.50 = 27,760.50 : x
2. Step 2: Convert to fraction form
   19,480/27,760.50 = 27,760.50/x
3. Step 3: Cross multiply
   19,480x = 27,760.50 × 27,760.50
4. Step 4: Simplify right side
   19,480x = 770,645,360.25
5. Step 5: Solve for x
   x = 770,645,360.25/19,480
6. Step 6: Final answer
   x = 39,560.85