Finding the Third Proportional to 3,328,640 and 7,170,012

Step by Step Solution

1. Step 1: Write the proportion equation
   3,328,640 : 7,170,012 = 7,170,012 : x
2. Step 2: Convert to fraction form
   3,328,640/7,170,012 = 7,170,012/x
3. Step 3: Cross multiply
   3,328,640x = 7,170,012 × 7,170,012
4. Step 4: Simplify right side
   3,328,640x = 51,409,072,080,144
5. Step 5: Solve for x
   x = 51,409,072,080,144/3,328,640
6. Step 6: Final answer
   x = 15,444,467.43