Finding the Third Proportional to 12,965.48 and 26,406.56

Step by Step Solution

1. Step 1: Write the proportion equation
   12,965.48 : 26,406.56 = 26,406.56 : x
2. Step 2: Convert to fraction form
   12,965.48/26,406.56 = 26,406.56/x
3. Step 3: Cross multiply
   12,965.48x = 26,406.56 × 26,406.56
4. Step 4: Simplify right side
   12,965.48x = 697,306,543.07
5. Step 5: Solve for x
   x = 697,306,543.07/12,965.48
6. Step 6: Final answer
   x = 53,781.76