Finding the Third Proportional to 3,602.81 and 8,413.03

Step by Step Solution

1. Step 1: Write the proportion equation
   3,602.81 : 8,413.03 = 8,413.03 : x
2. Step 2: Convert to fraction form
   3,602.81/8,413.03 = 8,413.03/x
3. Step 3: Cross multiply
   3,602.81x = 8,413.03 × 8,413.03
4. Step 4: Simplify right side
   3,602.81x = 70,779,094.81
5. Step 5: Solve for x
   x = 70,779,094.81/3,602.81
6. Step 6: Final answer
   x = 19,645.51