Finding the Third Proportional to 13,915 and 28,470

Step by Step Solution

1. Step 1: Write the proportion equation
   13,915 : 28,470 = 28,470 : x
2. Step 2: Convert to fraction form
   13,915/28,470 = 28,470/x
3. Step 3: Cross multiply
   13,915x = 28,470 × 28,470
4. Step 4: Simplify right side
   13,915x = 810,540,900
5. Step 5: Solve for x
   x = 810,540,900/13,915
6. Step 6: Final answer
   x = 58,249.44