Finding the Third Proportional to 11,531,256 and 17,687,808

Step by Step Solution

1. Step 1: Write the proportion equation
   11,531,256 : 17,687,808 = 17,687,808 : x
2. Step 2: Convert to fraction form
   11,531,256/17,687,808 = 17,687,808/x
3. Step 3: Cross multiply
   11,531,256x = 17,687,808 × 17,687,808
4. Step 4: Simplify right side
   11,531,256x = 312,858,551,844,864
5. Step 5: Solve for x
   x = 312,858,551,844,864/11,531,256
6. Step 6: Final answer
   x = 27,131,350.81