Finding the Third Proportional to 65,880 and 144,880.50

Step by Step Solution

1. Step 1: Write the proportion equation
   65,880 : 144,880.50 = 144,880.50 : x
2. Step 2: Convert to fraction form
   65,880/144,880.50 = 144,880.50/x
3. Step 3: Cross multiply
   65,880x = 144,880.50 × 144,880.50
4. Step 4: Simplify right side
   65,880x = 20,990,359,280.25
5. Step 5: Solve for x
   x = 20,990,359,280.25/65,880
6. Step 6: Final answer
   x = 318,615.05