Finding the Third Proportional to 65,022.75 and 139,745.25

Step by Step Solution

1. Step 1: Write the proportion equation
   65,022.75 : 139,745.25 = 139,745.25 : x
2. Step 2: Convert to fraction form
   65,022.75/139,745.25 = 139,745.25/x
3. Step 3: Cross multiply
   65,022.75x = 139,745.25 × 139,745.25
4. Step 4: Simplify right side
   65,022.75x = 19,528,734,897.56
5. Step 5: Solve for x
   x = 19,528,734,897.56/65,022.75
6. Step 6: Final answer
   x = 300,336.96