Finding the Third Proportional to 2,556,788 and 5,681,112

Step by Step Solution

1. Step 1: Write the proportion equation
   2,556,788 : 5,681,112 = 5,681,112 : x
2. Step 2: Convert to fraction form
   2,556,788/5,681,112 = 5,681,112/x
3. Step 3: Cross multiply
   2,556,788x = 5,681,112 × 5,681,112
4. Step 4: Simplify right side
   2,556,788x = 32,275,033,556,544
5. Step 5: Solve for x
   x = 32,275,033,556,544/2,556,788
6. Step 6: Final answer
   x = 12,623,273.25