Finding the Third Proportional to 3,942,236 and 8,473,396

Step by Step Solution

1. Step 1: Write the proportion equation
   3,942,236 : 8,473,396 = 8,473,396 : x
2. Step 2: Convert to fraction form
   3,942,236/8,473,396 = 8,473,396/x
3. Step 3: Cross multiply
   3,942,236x = 8,473,396 × 8,473,396
4. Step 4: Simplify right side
   3,942,236x = 71,798,439,772,816
5. Step 5: Solve for x
   x = 71,798,439,772,816/3,942,236
6. Step 6: Final answer
   x = 18,212,618.37