Finding the Third Proportional to 21,440 and 28,632

Step by Step Solution

1. Step 1: Write the proportion equation
   21,440 : 28,632 = 28,632 : x
2. Step 2: Convert to fraction form
   21,440/28,632 = 28,632/x
3. Step 3: Cross multiply
   21,440x = 28,632 × 28,632
4. Step 4: Simplify right side
   21,440x = 819,791,424
5. Step 5: Solve for x
   x = 819,791,424/21,440
6. Step 6: Final answer
   x = 38,236.54