Finding the Third Proportional to 17,603.58 and 39,142.83

Step by Step Solution

1. Step 1: Write the proportion equation
   17,603.58 : 39,142.83 = 39,142.83 : x
2. Step 2: Convert to fraction form
   17,603.58/39,142.83 = 39,142.83/x
3. Step 3: Cross multiply
   17,603.58x = 39,142.83 × 39,142.83
4. Step 4: Simplify right side
   17,603.58x = 1,532,160,993.62
5. Step 5: Solve for x
   x = 1,532,160,993.62/17,603.58
6. Step 6: Final answer
   x = 87,036.91