Finding the Third Proportional to 19,516 and 41,990

Step by Step Solution

1. Step 1: Write the proportion equation
   19,516 : 41,990 = 41,990 : x
2. Step 2: Convert to fraction form
   19,516/41,990 = 41,990/x
3. Step 3: Cross multiply
   19,516x = 41,990 × 41,990
4. Step 4: Simplify right side
   19,516x = 1,763,160,100
5. Step 5: Solve for x
   x = 1,763,160,100/19,516
6. Step 6: Final answer
   x = 90,344.34