Finding the Third Proportional to 12,913 and 28,284

Step by Step Solution

1. Step 1: Write the proportion equation
   12,913 : 28,284 = 28,284 : x
2. Step 2: Convert to fraction form
   12,913/28,284 = 28,284/x
3. Step 3: Cross multiply
   12,913x = 28,284 × 28,284
4. Step 4: Simplify right side
   12,913x = 799,984,656
5. Step 5: Solve for x
   x = 799,984,656/12,913
6. Step 6: Final answer
   x = 61,951.88