Finding the Third Proportional to 60,059 and 139,021

Step by Step Solution

1. Step 1: Write the proportion equation
   60,059 : 139,021 = 139,021 : x
2. Step 2: Convert to fraction form
   60,059/139,021 = 139,021/x
3. Step 3: Cross multiply
   60,059x = 139,021 × 139,021
4. Step 4: Simplify right side
   60,059x = 19,326,838,441
5. Step 5: Solve for x
   x = 19,326,838,441/60,059
6. Step 6: Final answer
   x = 321,797.54