Finding the Third Proportional to 11,517,638 and 17,398,942

Step by Step Solution

1. Step 1: Write the proportion equation
   11,517,638 : 17,398,942 = 17,398,942 : x
2. Step 2: Convert to fraction form
   11,517,638/17,398,942 = 17,398,942/x
3. Step 3: Cross multiply
   11,517,638x = 17,398,942 × 17,398,942
4. Step 4: Simplify right side
   11,517,638x = 302,723,182,719,364
5. Step 5: Solve for x
   x = 302,723,182,719,364/11,517,638
6. Step 6: Final answer
   x = 26,283,443.07