Finding the Third Proportional to 12,968 and 20,118

Step by Step Solution

1. Step 1: Write the proportion equation
   12,968 : 20,118 = 20,118 : x
2. Step 2: Convert to fraction form
   12,968/20,118 = 20,118/x
3. Step 3: Cross multiply
   12,968x = 20,118 × 20,118
4. Step 4: Simplify right side
   12,968x = 404,733,924
5. Step 5: Solve for x
   x = 404,733,924/12,968
6. Step 6: Final answer
   x = 31,210.20