Finding the Third Proportional to 3,251,172 and 7,145,886

Step by Step Solution

1. Step 1: Write the proportion equation
   3,251,172 : 7,145,886 = 7,145,886 : x
2. Step 2: Convert to fraction form
   3,251,172/7,145,886 = 7,145,886/x
3. Step 3: Cross multiply
   3,251,172x = 7,145,886 × 7,145,886
4. Step 4: Simplify right side
   3,251,172x = 51,063,686,724,996
5. Step 5: Solve for x
   x = 51,063,686,724,996/3,251,172
6. Step 6: Final answer
   x = 15,706,239.70