Finding the Third Proportional to 15,290.49 and 21,532.55

Step by Step Solution

1. Step 1: Write the proportion equation
   15,290.49 : 21,532.55 = 21,532.55 : x
2. Step 2: Convert to fraction form
   15,290.49/21,532.55 = 21,532.55/x
3. Step 3: Cross multiply
   15,290.49x = 21,532.55 × 21,532.55
4. Step 4: Simplify right side
   15,290.49x = 463,650,827.26
5. Step 5: Solve for x
   x = 463,650,827.26/15,290.49
6. Step 6: Final answer
   x = 30,322.82