Finding the Third Proportional to 4,939.31 and 10,915.59

Step by Step Solution

1. Step 1: Write the proportion equation
   4,939.31 : 10,915.59 = 10,915.59 : x
2. Step 2: Convert to fraction form
   4,939.31/10,915.59 = 10,915.59/x
3. Step 3: Cross multiply
   4,939.31x = 10,915.59 × 10,915.59
4. Step 4: Simplify right side
   4,939.31x = 119,150,186.92
5. Step 5: Solve for x
   x = 119,150,186.92/4,939.31
6. Step 6: Final answer
   x = 24,122.83