Finding the Third Proportional to 13,215 and 28,146

Step by Step Solution

1. Step 1: Write the proportion equation
   13,215 : 28,146 = 28,146 : x
2. Step 2: Convert to fraction form
   13,215/28,146 = 28,146/x
3. Step 3: Cross multiply
   13,215x = 28,146 × 28,146
4. Step 4: Simplify right side
   13,215x = 792,197,316
5. Step 5: Solve for x
   x = 792,197,316/13,215
6. Step 6: Final answer
   x = 59,946.83