Finding the Third Proportional to 65,700.75 and 144,118.50

Step by Step Solution

1. Step 1: Write the proportion equation
   65,700.75 : 144,118.50 = 144,118.50 : x
2. Step 2: Convert to fraction form
   65,700.75/144,118.50 = 144,118.50/x
3. Step 3: Cross multiply
   65,700.75x = 144,118.50 × 144,118.50
4. Step 4: Simplify right side
   65,700.75x = 20,770,142,042.25
5. Step 5: Solve for x
   x = 20,770,142,042.25/65,700.75
6. Step 6: Final answer
   x = 316,132.50