Finding the Third Proportional to 19,946 and 28,990

Step by Step Solution

1. Step 1: Write the proportion equation
   19,946 : 28,990 = 28,990 : x
2. Step 2: Convert to fraction form
   19,946/28,990 = 28,990/x
3. Step 3: Cross multiply
   19,946x = 28,990 × 28,990
4. Step 4: Simplify right side
   19,946x = 840,420,100
5. Step 5: Solve for x
   x = 840,420,100/19,946
6. Step 6: Final answer
   x = 42,134.77