Finding the Third Proportional to 17,615.25 and 36,686.25

Step by Step Solution

1. Step 1: Write the proportion equation
   17,615.25 : 36,686.25 = 36,686.25 : x
2. Step 2: Convert to fraction form
   17,615.25/36,686.25 = 36,686.25/x
3. Step 3: Cross multiply
   17,615.25x = 36,686.25 × 36,686.25
4. Step 4: Simplify right side
   17,615.25x = 1,345,880,939.06
5. Step 5: Solve for x
   x = 1,345,880,939.06/17,615.25
6. Step 6: Final answer
   x = 76,404.31