Finding the Third Proportional to 15,915.50 and 34,684

Step by Step Solution

1. Step 1: Write the proportion equation
   15,915.50 : 34,684 = 34,684 : x
2. Step 2: Convert to fraction form
   15,915.50/34,684 = 34,684/x
3. Step 3: Cross multiply
   15,915.50x = 34,684 × 34,684
4. Step 4: Simplify right side
   15,915.50x = 1,202,979,856
5. Step 5: Solve for x
   x = 1,202,979,856/15,915.50
6. Step 6: Final answer
   x = 75,585.43