Finding the Third Proportional to 19,246 and 42,170

Step by Step Solution

1. Step 1: Write the proportion equation
   19,246 : 42,170 = 42,170 : x
2. Step 2: Convert to fraction form
   19,246/42,170 = 42,170/x
3. Step 3: Cross multiply
   19,246x = 42,170 × 42,170
4. Step 4: Simplify right side
   19,246x = 1,778,308,900
5. Step 5: Solve for x
   x = 1,778,308,900/19,246
6. Step 6: Final answer
   x = 92,398.88