Finding the Third Proportional to 3,557,584 and 7,779,476

Step by Step Solution

1. Step 1: Write the proportion equation
   3,557,584 : 7,779,476 = 7,779,476 : x
2. Step 2: Convert to fraction form
   3,557,584/7,779,476 = 7,779,476/x
3. Step 3: Cross multiply
   3,557,584x = 7,779,476 × 7,779,476
4. Step 4: Simplify right side
   3,557,584x = 60,520,246,834,576
5. Step 5: Solve for x
   x = 60,520,246,834,576/3,557,584
6. Step 6: Final answer
   x = 17,011,614.30