Finding the Third Proportional to 3,883,440 and 8,513,378

Step by Step Solution

1. Step 1: Write the proportion equation
   3,883,440 : 8,513,378 = 8,513,378 : x
2. Step 2: Convert to fraction form
   3,883,440/8,513,378 = 8,513,378/x
3. Step 3: Cross multiply
   3,883,440x = 8,513,378 × 8,513,378
4. Step 4: Simplify right side
   3,883,440x = 72,477,604,970,884
5. Step 5: Solve for x
   x = 72,477,604,970,884/3,883,440
6. Step 6: Final answer
   x = 18,663,248.30