Finding the Third Proportional to 12,645 and 28,836

Step by Step Solution

1. Step 1: Write the proportion equation
   12,645 : 28,836 = 28,836 : x
2. Step 2: Convert to fraction form
   12,645/28,836 = 28,836/x
3. Step 3: Cross multiply
   12,645x = 28,836 × 28,836
4. Step 4: Simplify right side
   12,645x = 831,514,896
5. Step 5: Solve for x
   x = 831,514,896/12,645
6. Step 6: Final answer
   x = 65,758.39