Finding the Third Proportional to 2,556,786 and 5,681,108

Step by Step Solution

1. Step 1: Write the proportion equation
   2,556,786 : 5,681,108 = 5,681,108 : x
2. Step 2: Convert to fraction form
   2,556,786/5,681,108 = 5,681,108/x
3. Step 3: Cross multiply
   2,556,786x = 5,681,108 × 5,681,108
4. Step 4: Simplify right side
   2,556,786x = 32,274,988,107,664
5. Step 5: Solve for x
   x = 32,274,988,107,664/2,556,786
6. Step 6: Final answer
   x = 12,623,265.34