Finding the Third Proportional to 5,603,328 and 8,206,208

Step by Step Solution

1. Step 1: Write the proportion equation
   5,603,328 : 8,206,208 = 8,206,208 : x
2. Step 2: Convert to fraction form
   5,603,328/8,206,208 = 8,206,208/x
3. Step 3: Cross multiply
   5,603,328x = 8,206,208 × 8,206,208
4. Step 4: Simplify right side
   5,603,328x = 67,341,849,739,264
5. Step 5: Solve for x
   x = 67,341,849,739,264/5,603,328
6. Step 6: Final answer
   x = 12,018,188.07