Finding the Third Proportional to 13,186.69 and 26,862.75

Step by Step Solution

1. Step 1: Write the proportion equation
   13,186.69 : 26,862.75 = 26,862.75 : x
2. Step 2: Convert to fraction form
   13,186.69/26,862.75 = 26,862.75/x
3. Step 3: Cross multiply
   13,186.69x = 26,862.75 × 26,862.75
4. Step 4: Simplify right side
   13,186.69x = 721,607,337.56
5. Step 5: Solve for x
   x = 721,607,337.56/13,186.69
6. Step 6: Final answer
   x = 54,722.41