Finding the Third Proportional to 1,915.52 and 4,069.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,915.52 : 4,069.30 = 4,069.30 : x
2. Step 2: Convert to fraction form
   1,915.52/4,069.30 = 4,069.30/x
3. Step 3: Cross multiply
   1,915.52x = 4,069.30 × 4,069.30
4. Step 4: Simplify right side
   1,915.52x = 16,559,208.85
5. Step 5: Solve for x
   x = 16,559,208.85/1,915.52
6. Step 6: Final answer
   x = 8,644.74