Finding the Third Proportional to 65,140.94 and 142,751.38

Step by Step Solution

1. Step 1: Write the proportion equation
   65,140.94 : 142,751.38 = 142,751.38 : x
2. Step 2: Convert to fraction form
   65,140.94/142,751.38 = 142,751.38/x
3. Step 3: Cross multiply
   65,140.94x = 142,751.38 × 142,751.38
4. Step 4: Simplify right side
   65,140.94x = 20,377,955,064.39
5. Step 5: Solve for x
   x = 20,377,955,064.39/65,140.94
6. Step 6: Final answer
   x = 312,828.70