Finding the Third Proportional to 18,987.75 and 30,449.25

Step by Step Solution

1. Step 1: Write the proportion equation
   18,987.75 : 30,449.25 = 30,449.25 : x
2. Step 2: Convert to fraction form
   18,987.75/30,449.25 = 30,449.25/x
3. Step 3: Cross multiply
   18,987.75x = 30,449.25 × 30,449.25
4. Step 4: Simplify right side
   18,987.75x = 927,156,825.56
5. Step 5: Solve for x
   x = 927,156,825.56/18,987.75
6. Step 6: Final answer
   x = 48,829.21