Finding the Third Proportional to 19,143 and 42,058

Step by Step Solution

1. Step 1: Write the proportion equation
   19,143 : 42,058 = 42,058 : x
2. Step 2: Convert to fraction form
   19,143/42,058 = 42,058/x
3. Step 3: Cross multiply
   19,143x = 42,058 × 42,058
4. Step 4: Simplify right side
   19,143x = 1,768,875,364
5. Step 5: Solve for x
   x = 1,768,875,364/19,143
6. Step 6: Final answer
   x = 92,403.25