Finding the Third Proportional to 4,072,321 and 8,041,852

Step by Step Solution

1. Step 1: Write the proportion equation
   4,072,321 : 8,041,852 = 8,041,852 : x
2. Step 2: Convert to fraction form
   4,072,321/8,041,852 = 8,041,852/x
3. Step 3: Cross multiply
   4,072,321x = 8,041,852 × 8,041,852
4. Step 4: Simplify right side
   4,072,321x = 64,671,383,589,904
5. Step 5: Solve for x
   x = 64,671,383,589,904/4,072,321
6. Step 6: Final answer
   x = 15,880,718.54