Finding the Third Proportional to 3,864,176 and 8,493,280

Step by Step Solution

1. Step 1: Write the proportion equation
   3,864,176 : 8,493,280 = 8,493,280 : x
2. Step 2: Convert to fraction form
   3,864,176/8,493,280 = 8,493,280/x
3. Step 3: Cross multiply
   3,864,176x = 8,493,280 × 8,493,280
4. Step 4: Simplify right side
   3,864,176x = 72,135,805,158,400
5. Step 5: Solve for x
   x = 72,135,805,158,400/3,864,176
6. Step 6: Final answer
   x = 18,667,836.34