Finding the Third Proportional to 65,119.50 and 142,022.25

Step by Step Solution

1. Step 1: Write the proportion equation
   65,119.50 : 142,022.25 = 142,022.25 : x
2. Step 2: Convert to fraction form
   65,119.50/142,022.25 = 142,022.25/x
3. Step 3: Cross multiply
   65,119.50x = 142,022.25 × 142,022.25
4. Step 4: Simplify right side
   65,119.50x = 20,170,319,495.06
5. Step 5: Solve for x
   x = 20,170,319,495.06/65,119.50
6. Step 6: Final answer
   x = 309,743.16