Finding the Third Proportional to 142,069 and 215,695

Step by Step Solution

1. Step 1: Write the proportion equation
   142,069 : 215,695 = 215,695 : x
2. Step 2: Convert to fraction form
   142,069/215,695 = 215,695/x
3. Step 3: Cross multiply
   142,069x = 215,695 × 215,695
4. Step 4: Simplify right side
   142,069x = 46,524,333,025
5. Step 5: Solve for x
   x = 46,524,333,025/142,069
6. Step 6: Final answer
   x = 327,477.02