Finding the Third Proportional to 19,039 and 42,157

Step by Step Solution

1. Step 1: Write the proportion equation
   19,039 : 42,157 = 42,157 : x
2. Step 2: Convert to fraction form
   19,039/42,157 = 42,157/x
3. Step 3: Cross multiply
   19,039x = 42,157 × 42,157
4. Step 4: Simplify right side
   19,039x = 1,777,212,649
5. Step 5: Solve for x
   x = 1,777,212,649/19,039
6. Step 6: Final answer
   x = 93,345.90