Finding the Third Proportional to 67,071 and 139,650

Step by Step Solution

1. Step 1: Write the proportion equation
   67,071 : 139,650 = 139,650 : x
2. Step 2: Convert to fraction form
   67,071/139,650 = 139,650/x
3. Step 3: Cross multiply
   67,071x = 139,650 × 139,650
4. Step 4: Simplify right side
   67,071x = 19,502,122,500
5. Step 5: Solve for x
   x = 19,502,122,500/67,071
6. Step 6: Final answer
   x = 290,768.33