Finding the Third Proportional to 65,580.50 and 144,496

Step by Step Solution

1. Step 1: Write the proportion equation
   65,580.50 : 144,496 = 144,496 : x
2. Step 2: Convert to fraction form
   65,580.50/144,496 = 144,496/x
3. Step 3: Cross multiply
   65,580.50x = 144,496 × 144,496
4. Step 4: Simplify right side
   65,580.50x = 20,879,094,016
5. Step 5: Solve for x
   x = 20,879,094,016/65,580.50
6. Step 6: Final answer
   x = 318,373.51