Finding the Third Proportional to 21,647.25 and 28,319.63

Step by Step Solution

1. Step 1: Write the proportion equation
   21,647.25 : 28,319.63 = 28,319.63 : x
2. Step 2: Convert to fraction form
   21,647.25/28,319.63 = 28,319.63/x
3. Step 3: Cross multiply
   21,647.25x = 28,319.63 × 28,319.63
4. Step 4: Simplify right side
   21,647.25x = 802,001,160.14
5. Step 5: Solve for x
   x = 802,001,160.14/21,647.25
6. Step 6: Final answer
   x = 37,048.64