Finding the Third Proportional to 2,978,852 and 6,429,960

Step by Step Solution

1. Step 1: Write the proportion equation
   2,978,852 : 6,429,960 = 6,429,960 : x
2. Step 2: Convert to fraction form
   2,978,852/6,429,960 = 6,429,960/x
3. Step 3: Cross multiply
   2,978,852x = 6,429,960 × 6,429,960
4. Step 4: Simplify right side
   2,978,852x = 41,344,385,601,600
5. Step 5: Solve for x
   x = 41,344,385,601,600/2,978,852
6. Step 6: Final answer
   x = 13,879,301.69