Finding the Third Proportional to 1,636,591 and 3,556,467

Step by Step Solution

1. Step 1: Write the proportion equation
   1,636,591 : 3,556,467 = 3,556,467 : x
2. Step 2: Convert to fraction form
   1,636,591/3,556,467 = 3,556,467/x
3. Step 3: Cross multiply
   1,636,591x = 3,556,467 × 3,556,467
4. Step 4: Simplify right side
   1,636,591x = 12,648,457,522,089
5. Step 5: Solve for x
   x = 12,648,457,522,089/1,636,591
6. Step 6: Final answer
   x = 7,728,539.09