Finding the Third Proportional to 1,640,442 and 3,603,516

Step by Step Solution

1. Step 1: Write the proportion equation
   1,640,442 : 3,603,516 = 3,603,516 : x
2. Step 2: Convert to fraction form
   1,640,442/3,603,516 = 3,603,516/x
3. Step 3: Cross multiply
   1,640,442x = 3,603,516 × 3,603,516
4. Step 4: Simplify right side
   1,640,442x = 12,985,327,562,256
5. Step 5: Solve for x
   x = 12,985,327,562,256/1,640,442
6. Step 6: Final answer
   x = 7,915,749.27