Finding the Third Proportional to 3,889,436 and 8,402,044

Step by Step Solution

1. Step 1: Write the proportion equation
   3,889,436 : 8,402,044 = 8,402,044 : x
2. Step 2: Convert to fraction form
   3,889,436/8,402,044 = 8,402,044/x
3. Step 3: Cross multiply
   3,889,436x = 8,402,044 × 8,402,044
4. Step 4: Simplify right side
   3,889,436x = 70,594,343,377,936
5. Step 5: Solve for x
   x = 70,594,343,377,936/3,889,436
6. Step 6: Final answer
   x = 18,150,277.67