Finding the Third Proportional to 2,556,470 and 4,069,817

Step by Step Solution

1. Step 1: Write the proportion equation
   2,556,470 : 4,069,817 = 4,069,817 : x
2. Step 2: Convert to fraction form
   2,556,470/4,069,817 = 4,069,817/x
3. Step 3: Cross multiply
   2,556,470x = 4,069,817 × 4,069,817
4. Step 4: Simplify right side
   2,556,470x = 16,563,410,413,489
5. Step 5: Solve for x
   x = 16,563,410,413,489/2,556,470
6. Step 6: Final answer
   x = 6,479,016.15