Finding the Third Proportional to 2,553,961 and 5,556,323

Step by Step Solution

1. Step 1: Write the proportion equation
   2,553,961 : 5,556,323 = 5,556,323 : x
2. Step 2: Convert to fraction form
   2,553,961/5,556,323 = 5,556,323/x
3. Step 3: Cross multiply
   2,553,961x = 5,556,323 × 5,556,323
4. Step 4: Simplify right side
   2,553,961x = 30,872,725,280,329
5. Step 5: Solve for x
   x = 30,872,725,280,329/2,553,961
6. Step 6: Final answer
   x = 12,088,174.13