Finding the Third Proportional to 3,865,644 and 8,495,928

Step by Step Solution

1. Step 1: Write the proportion equation
   3,865,644 : 8,495,928 = 8,495,928 : x
2. Step 2: Convert to fraction form
   3,865,644/8,495,928 = 8,495,928/x
3. Step 3: Cross multiply
   3,865,644x = 8,495,928 × 8,495,928
4. Step 4: Simplify right side
   3,865,644x = 72,180,792,581,184
5. Step 5: Solve for x
   x = 72,180,792,581,184/3,865,644
6. Step 6: Final answer
   x = 18,672,384.88