Finding the Third Proportional to 12,969 and 28,478

Step by Step Solution

1. Step 1: Write the proportion equation
   12,969 : 28,478 = 28,478 : x
2. Step 2: Convert to fraction form
   12,969/28,478 = 28,478/x
3. Step 3: Cross multiply
   12,969x = 28,478 × 28,478
4. Step 4: Simplify right side
   12,969x = 810,996,484
5. Step 5: Solve for x
   x = 810,996,484/12,969
6. Step 6: Final answer
   x = 62,533.46