Finding the Third Proportional to 21,471 and 28,926

Step by Step Solution

1. Step 1: Write the proportion equation
   21,471 : 28,926 = 28,926 : x
2. Step 2: Convert to fraction form
   21,471/28,926 = 28,926/x
3. Step 3: Cross multiply
   21,471x = 28,926 × 28,926
4. Step 4: Simplify right side
   21,471x = 836,713,476
5. Step 5: Solve for x
   x = 836,713,476/21,471
6. Step 6: Final answer
   x = 38,969.47