Finding the Third Proportional to 3,920,880 and 8,493,152

Step by Step Solution

1. Step 1: Write the proportion equation
   3,920,880 : 8,493,152 = 8,493,152 : x
2. Step 2: Convert to fraction form
   3,920,880/8,493,152 = 8,493,152/x
3. Step 3: Cross multiply
   3,920,880x = 8,493,152 × 8,493,152
4. Step 4: Simplify right side
   3,920,880x = 72,133,630,895,104
5. Step 5: Solve for x
   x = 72,133,630,895,104/3,920,880
6. Step 6: Final answer
   x = 18,397,306.45