Finding the Third Proportional to 65,017.69 and 141,942.38

Step by Step Solution

1. Step 1: Write the proportion equation
   65,017.69 : 141,942.38 = 141,942.38 : x
2. Step 2: Convert to fraction form
   65,017.69/141,942.38 = 141,942.38/x
3. Step 3: Cross multiply
   65,017.69x = 141,942.38 × 141,942.38
4. Step 4: Simplify right side
   65,017.69x = 20,147,637,820.64
5. Step 5: Solve for x
   x = 20,147,637,820.64/65,017.69
6. Step 6: Final answer
   x = 309,879.34