Finding the Third Proportional to 12,929.63 and 26,403.47

Step by Step Solution

1. Step 1: Write the proportion equation
   12,929.63 : 26,403.47 = 26,403.47 : x
2. Step 2: Convert to fraction form
   12,929.63/26,403.47 = 26,403.47/x
3. Step 3: Cross multiply
   12,929.63x = 26,403.47 × 26,403.47
4. Step 4: Simplify right side
   12,929.63x = 697,143,162.03
5. Step 5: Solve for x
   x = 697,143,162.03/12,929.63
6. Step 6: Final answer
   x = 53,918.28