Finding the Third Proportional to 15,017.25 and 21,631.88

Step by Step Solution

1. Step 1: Write the proportion equation
   15,017.25 : 21,631.88 = 21,631.88 : x
2. Step 2: Convert to fraction form
   15,017.25/21,631.88 = 21,631.88/x
3. Step 3: Cross multiply
   15,017.25x = 21,631.88 × 21,631.88
4. Step 4: Simplify right side
   15,017.25x = 467,938,016.02
5. Step 5: Solve for x
   x = 467,938,016.02/15,017.25
6. Step 6: Final answer
   x = 31,160.03