Finding the Third Proportional to 19,719 and 41,100

Step by Step Solution

1. Step 1: Write the proportion equation
   19,719 : 41,100 = 41,100 : x
2. Step 2: Convert to fraction form
   19,719/41,100 = 41,100/x
3. Step 3: Cross multiply
   19,719x = 41,100 × 41,100
4. Step 4: Simplify right side
   19,719x = 1,689,210,000
5. Step 5: Solve for x
   x = 1,689,210,000/19,719
6. Step 6: Final answer
   x = 85,664.08