Finding the Third Proportional to 1,636,579 and 3,556,442

Step by Step Solution

1. Step 1: Write the proportion equation
   1,636,579 : 3,556,442 = 3,556,442 : x
2. Step 2: Convert to fraction form
   1,636,579/3,556,442 = 3,556,442/x
3. Step 3: Cross multiply
   1,636,579x = 3,556,442 × 3,556,442
4. Step 4: Simplify right side
   1,636,579x = 12,648,279,699,364
5. Step 5: Solve for x
   x = 12,648,279,699,364/1,636,579
6. Step 6: Final answer
   x = 7,728,487.11