Finding the Third Proportional to 60,110 and 139,150

Step by Step Solution

1. Step 1: Write the proportion equation
   60,110 : 139,150 = 139,150 : x
2. Step 2: Convert to fraction form
   60,110/139,150 = 139,150/x
3. Step 3: Cross multiply
   60,110x = 139,150 × 139,150
4. Step 4: Simplify right side
   60,110x = 19,362,722,500
5. Step 5: Solve for x
   x = 19,362,722,500/60,110
6. Step 6: Final answer
   x = 322,121.49