Finding the Third Proportional to 19,212 and 42,126

Step by Step Solution

1. Step 1: Write the proportion equation
   19,212 : 42,126 = 42,126 : x
2. Step 2: Convert to fraction form
   19,212/42,126 = 42,126/x
3. Step 3: Cross multiply
   19,212x = 42,126 × 42,126
4. Step 4: Simplify right side
   19,212x = 1,774,599,876
5. Step 5: Solve for x
   x = 1,774,599,876/19,212
6. Step 6: Final answer
   x = 92,369.35