Finding the Third Proportional to 1,636,440 and 3,500,328

Step by Step Solution

1. Step 1: Write the proportion equation
   1,636,440 : 3,500,328 = 3,500,328 : x
2. Step 2: Convert to fraction form
   1,636,440/3,500,328 = 3,500,328/x
3. Step 3: Cross multiply
   1,636,440x = 3,500,328 × 3,500,328
4. Step 4: Simplify right side
   1,636,440x = 12,252,296,107,584
5. Step 5: Solve for x
   x = 12,252,296,107,584/1,636,440
6. Step 6: Final answer
   x = 7,487,164.89