Finding the Third Proportional to 3,939,642 and 8,467,732

Step by Step Solution

1. Step 1: Write the proportion equation
   3,939,642 : 8,467,732 = 8,467,732 : x
2. Step 2: Convert to fraction form
   3,939,642/8,467,732 = 8,467,732/x
3. Step 3: Cross multiply
   3,939,642x = 8,467,732 × 8,467,732
4. Step 4: Simplify right side
   3,939,642x = 71,702,485,223,824
5. Step 5: Solve for x
   x = 71,702,485,223,824/3,939,642
6. Step 6: Final answer
   x = 18,200,254.04