Finding the Third Proportional to 65,546.72 and 142,770.52

Step by Step Solution

1. Step 1: Write the proportion equation
   65,546.72 : 142,770.52 = 142,770.52 : x
2. Step 2: Convert to fraction form
   65,546.72/142,770.52 = 142,770.52/x
3. Step 3: Cross multiply
   65,546.72x = 142,770.52 × 142,770.52
4. Step 4: Simplify right side
   65,546.72x = 20,383,420,131.83
5. Step 5: Solve for x
   x = 20,383,420,131.83/65,546.72
6. Step 6: Final answer
   x = 310,975.45