Finding the Third Proportional to 65,880 and 144,248

Step by Step Solution

1. Step 1: Write the proportion equation
   65,880 : 144,248 = 144,248 : x
2. Step 2: Convert to fraction form
   65,880/144,248 = 144,248/x
3. Step 3: Cross multiply
   65,880x = 144,248 × 144,248
4. Step 4: Simplify right side
   65,880x = 20,807,485,504
5. Step 5: Solve for x
   x = 20,807,485,504/65,880
6. Step 6: Final answer
   x = 315,839.18