Finding the Third Proportional to 2,561,100 and 5,556,312

Step by Step Solution

1. Step 1: Write the proportion equation
   2,561,100 : 5,556,312 = 5,556,312 : x
2. Step 2: Convert to fraction form
   2,561,100/5,556,312 = 5,556,312/x
3. Step 3: Cross multiply
   2,561,100x = 5,556,312 × 5,556,312
4. Step 4: Simplify right side
   2,561,100x = 30,872,603,041,344
5. Step 5: Solve for x
   x = 30,872,603,041,344/2,561,100
6. Step 6: Final answer
   x = 12,054,430.92