Finding the Third Proportional to 67,071 and 142,138

Step by Step Solution

1. Step 1: Write the proportion equation
   67,071 : 142,138 = 142,138 : x
2. Step 2: Convert to fraction form
   67,071/142,138 = 142,138/x
3. Step 3: Cross multiply
   67,071x = 142,138 × 142,138
4. Step 4: Simplify right side
   67,071x = 20,203,211,044
5. Step 5: Solve for x
   x = 20,203,211,044/67,071
6. Step 6: Final answer
   x = 301,221.26