Finding the Third Proportional to 4,381.59 and 9,613.69

Step by Step Solution

1. Step 1: Write the proportion equation
   4,381.59 : 9,613.69 = 9,613.69 : x
2. Step 2: Convert to fraction form
   4,381.59/9,613.69 = 9,613.69/x
3. Step 3: Cross multiply
   4,381.59x = 9,613.69 × 9,613.69
4. Step 4: Simplify right side
   4,381.59x = 92,422,987.35
5. Step 5: Solve for x
   x = 92,422,987.35/4,381.59
6. Step 6: Final answer
   x = 21,093.46