Finding the Third Proportional to 65,058.19 and 141,942.38

Step by Step Solution

1. Step 1: Write the proportion equation
   65,058.19 : 141,942.38 = 141,942.38 : x
2. Step 2: Convert to fraction form
   65,058.19/141,942.38 = 141,942.38/x
3. Step 3: Cross multiply
   65,058.19x = 141,942.38 × 141,942.38
4. Step 4: Simplify right side
   65,058.19x = 20,147,637,820.64
5. Step 5: Solve for x
   x = 20,147,637,820.64/65,058.19
6. Step 6: Final answer
   x = 309,686.43