Finding the Third Proportional to 12,976 and 28,440

Step by Step Solution

1. Step 1: Write the proportion equation
   12,976 : 28,440 = 28,440 : x
2. Step 2: Convert to fraction form
   12,976/28,440 = 28,440/x
3. Step 3: Cross multiply
   12,976x = 28,440 × 28,440
4. Step 4: Simplify right side
   12,976x = 808,833,600
5. Step 5: Solve for x
   x = 808,833,600/12,976
6. Step 6: Final answer
   x = 62,333.05