Finding the Third Proportional to 19,180 and 28,790

Step by Step Solution

1. Step 1: Write the proportion equation
   19,180 : 28,790 = 28,790 : x
2. Step 2: Convert to fraction form
   19,180/28,790 = 28,790/x
3. Step 3: Cross multiply
   19,180x = 28,790 × 28,790
4. Step 4: Simplify right side
   19,180x = 828,864,100
5. Step 5: Solve for x
   x = 828,864,100/19,180
6. Step 6: Final answer
   x = 43,215.02