Finding the Third Proportional to 19,635 and 42,042

Step by Step Solution

1. Step 1: Write the proportion equation
   19,635 : 42,042 = 42,042 : x
2. Step 2: Convert to fraction form
   19,635/42,042 = 42,042/x
3. Step 3: Cross multiply
   19,635x = 42,042 × 42,042
4. Step 4: Simplify right side
   19,635x = 1,767,529,764
5. Step 5: Solve for x
   x = 1,767,529,764/19,635
6. Step 6: Final answer
   x = 90,019.34