Finding the Third Proportional to 12,910 and 28,279

Step by Step Solution

1. Step 1: Write the proportion equation
   12,910 : 28,279 = 28,279 : x
2. Step 2: Convert to fraction form
   12,910/28,279 = 28,279/x
3. Step 3: Cross multiply
   12,910x = 28,279 × 28,279
4. Step 4: Simplify right side
   12,910x = 799,701,841
5. Step 5: Solve for x
   x = 799,701,841/12,910
6. Step 6: Final answer
   x = 61,944.37