Finding the Third Proportional to 1,636,602 and 3,556,490

Step by Step Solution

1. Step 1: Write the proportion equation
   1,636,602 : 3,556,490 = 3,556,490 : x
2. Step 2: Convert to fraction form
   1,636,602/3,556,490 = 3,556,490/x
3. Step 3: Cross multiply
   1,636,602x = 3,556,490 × 3,556,490
4. Step 4: Simplify right side
   1,636,602x = 12,648,621,120,100
5. Step 5: Solve for x
   x = 12,648,621,120,100/1,636,602
6. Step 6: Final answer
   x = 7,728,587.11