Finding the Third Proportional to 21,475.13 and 28,636.03

Step by Step Solution

1. Step 1: Write the proportion equation
   21,475.13 : 28,636.03 = 28,636.03 : x
2. Step 2: Convert to fraction form
   21,475.13/28,636.03 = 28,636.03/x
3. Step 3: Cross multiply
   21,475.13x = 28,636.03 × 28,636.03
4. Step 4: Simplify right side
   21,475.13x = 820,022,285.75
5. Step 5: Solve for x
   x = 820,022,285.75/21,475.13
6. Step 6: Final answer
   x = 38,184.75