Finding the Third Proportional to 60,072 and 139,053

Step by Step Solution

1. Step 1: Write the proportion equation
   60,072 : 139,053 = 139,053 : x
2. Step 2: Convert to fraction form
   60,072/139,053 = 139,053/x
3. Step 3: Cross multiply
   60,072x = 139,053 × 139,053
4. Step 4: Simplify right side
   60,072x = 19,335,736,809
5. Step 5: Solve for x
   x = 19,335,736,809/60,072
6. Step 6: Final answer
   x = 321,876.03