Finding the Third Proportional to 65,940.75 and 145,327.50

Step by Step Solution

1. Step 1: Write the proportion equation
   65,940.75 : 145,327.50 = 145,327.50 : x
2. Step 2: Convert to fraction form
   65,940.75/145,327.50 = 145,327.50/x
3. Step 3: Cross multiply
   65,940.75x = 145,327.50 × 145,327.50
4. Step 4: Simplify right side
   65,940.75x = 21,120,082,256.25
5. Step 5: Solve for x
   x = 21,120,082,256.25/65,940.75
6. Step 6: Final answer
   x = 320,288.78