Finding the Third Proportional to 3,920,943 and 8,493,267

Step by Step Solution

1. Step 1: Write the proportion equation
   3,920,943 : 8,493,267 = 8,493,267 : x
2. Step 2: Convert to fraction form
   3,920,943/8,493,267 = 8,493,267/x
3. Step 3: Cross multiply
   3,920,943x = 8,493,267 × 8,493,267
4. Step 4: Simplify right side
   3,920,943x = 72,135,584,333,289
5. Step 5: Solve for x
   x = 72,135,584,333,289/3,920,943
6. Step 6: Final answer
   x = 18,397,509.05