Finding the Third Proportional to 11,309.63 and 26,218.69

Step by Step Solution

1. Step 1: Write the proportion equation
   11,309.63 : 26,218.69 = 26,218.69 : x
2. Step 2: Convert to fraction form
   11,309.63/26,218.69 = 26,218.69/x
3. Step 3: Cross multiply
   11,309.63x = 26,218.69 × 26,218.69
4. Step 4: Simplify right side
   11,309.63x = 687,419,574.22
5. Step 5: Solve for x
   x = 687,419,574.22/11,309.63
6. Step 6: Final answer
   x = 60,781.82