Finding the Third Proportional to 65,591.50 and 144,965

Step by Step Solution

1. Step 1: Write the proportion equation
   65,591.50 : 144,965 = 144,965 : x
2. Step 2: Convert to fraction form
   65,591.50/144,965 = 144,965/x
3. Step 3: Cross multiply
   65,591.50x = 144,965 × 144,965
4. Step 4: Simplify right side
   65,591.50x = 21,014,851,225
5. Step 5: Solve for x
   x = 21,014,851,225/65,591.50
6. Step 6: Final answer
   x = 320,389.86