Finding the Third Proportional to 3,555,698 and 5,648,475

Step by Step Solution

1. Step 1: Write the proportion equation
   3,555,698 : 5,648,475 = 5,648,475 : x
2. Step 2: Convert to fraction form
   3,555,698/5,648,475 = 5,648,475/x
3. Step 3: Cross multiply
   3,555,698x = 5,648,475 × 5,648,475
4. Step 4: Simplify right side
   3,555,698x = 31,905,269,825,625
5. Step 5: Solve for x
   x = 31,905,269,825,625/3,555,698
6. Step 6: Final answer
   x = 8,972,997.66