Finding the Third Proportional to 2,620,590 and 5,556,054

Step by Step Solution

1. Step 1: Write the proportion equation
   2,620,590 : 5,556,054 = 5,556,054 : x
2. Step 2: Convert to fraction form
   2,620,590/5,556,054 = 5,556,054/x
3. Step 3: Cross multiply
   2,620,590x = 5,556,054 × 5,556,054
4. Step 4: Simplify right side
   2,620,590x = 30,869,736,050,916
5. Step 5: Solve for x
   x = 30,869,736,050,916/2,620,590
6. Step 6: Final answer
   x = 11,779,689.33