Finding the Third Proportional to 18,603.74 and 28,076.47

Step by Step Solution

1. Step 1: Write the proportion equation
   18,603.74 : 28,076.47 = 28,076.47 : x
2. Step 2: Convert to fraction form
   18,603.74/28,076.47 = 28,076.47/x
3. Step 3: Cross multiply
   18,603.74x = 28,076.47 × 28,076.47
4. Step 4: Simplify right side
   18,603.74x = 788,287,987.80
5. Step 5: Solve for x
   x = 788,287,987.80/18,603.74
6. Step 6: Final answer
   x = 42,372.56