Finding the Third Proportional to 19,788 and 41,112

Step by Step Solution

1. Step 1: Write the proportion equation
   19,788 : 41,112 = 41,112 : x
2. Step 2: Convert to fraction form
   19,788/41,112 = 41,112/x
3. Step 3: Cross multiply
   19,788x = 41,112 × 41,112
4. Step 4: Simplify right side
   19,788x = 1,690,196,544
5. Step 5: Solve for x
   x = 1,690,196,544/19,788
6. Step 6: Final answer
   x = 85,415.23