Finding the Third Proportional to 12,915 and 28,294

Step by Step Solution

1. Step 1: Write the proportion equation
   12,915 : 28,294 = 28,294 : x
2. Step 2: Convert to fraction form
   12,915/28,294 = 28,294/x
3. Step 3: Cross multiply
   12,915x = 28,294 × 28,294
4. Step 4: Simplify right side
   12,915x = 800,550,436
5. Step 5: Solve for x
   x = 800,550,436/12,915
6. Step 6: Final answer
   x = 61,986.10