Finding the Third Proportional to 3,555,718 and 5,648,507

Step by Step Solution

1. Step 1: Write the proportion equation
   3,555,718 : 5,648,507 = 5,648,507 : x
2. Step 2: Convert to fraction form
   3,555,718/5,648,507 = 5,648,507/x
3. Step 3: Cross multiply
   3,555,718x = 5,648,507 × 5,648,507
4. Step 4: Simplify right side
   3,555,718x = 31,905,631,329,049
5. Step 5: Solve for x
   x = 31,905,631,329,049/3,555,718
6. Step 6: Final answer
   x = 8,973,048.86