Finding the Third Proportional to 12,916 and 28,253

Step by Step Solution

1. Step 1: Write the proportion equation
   12,916 : 28,253 = 28,253 : x
2. Step 2: Convert to fraction form
   12,916/28,253 = 28,253/x
3. Step 3: Cross multiply
   12,916x = 28,253 × 28,253
4. Step 4: Simplify right side
   12,916x = 798,232,009
5. Step 5: Solve for x
   x = 798,232,009/12,916
6. Step 6: Final answer
   x = 61,801.80