Finding the Third Proportional to 20,090 and 28,461

Step by Step Solution

1. Step 1: Write the proportion equation
   20,090 : 28,461 = 28,461 : x
2. Step 2: Convert to fraction form
   20,090/28,461 = 28,461/x
3. Step 3: Cross multiply
   20,090x = 28,461 × 28,461
4. Step 4: Simplify right side
   20,090x = 810,028,521
5. Step 5: Solve for x
   x = 810,028,521/20,090
6. Step 6: Final answer
   x = 40,319.99