Finding the Third Proportional to 69,072 and 143,058

Step by Step Solution

1. Step 1: Write the proportion equation
   69,072 : 143,058 = 143,058 : x
2. Step 2: Convert to fraction form
   69,072/143,058 = 143,058/x
3. Step 3: Cross multiply
   69,072x = 143,058 × 143,058
4. Step 4: Simplify right side
   69,072x = 20,465,591,364
5. Step 5: Solve for x
   x = 20,465,591,364/69,072
6. Step 6: Final answer
   x = 296,293.60