Finding the Third Proportional to 67,069.69 and 142,135.69

Step by Step Solution

1. Step 1: Write the proportion equation
   67,069.69 : 142,135.69 = 142,135.69 : x
2. Step 2: Convert to fraction form
   67,069.69/142,135.69 = 142,135.69/x
3. Step 3: Cross multiply
   67,069.69x = 142,135.69 × 142,135.69
4. Step 4: Simplify right side
   67,069.69x = 20,202,553,661.10
5. Step 5: Solve for x
   x = 20,202,553,661.10/67,069.69
6. Step 6: Final answer
   x = 301,217.35