Finding the Third Proportional to 3,554,621 and 5,079,553

Step by Step Solution

1. Step 1: Write the proportion equation
   3,554,621 : 5,079,553 = 5,079,553 : x
2. Step 2: Convert to fraction form
   3,554,621/5,079,553 = 5,079,553/x
3. Step 3: Cross multiply
   3,554,621x = 5,079,553 × 5,079,553
4. Step 4: Simplify right side
   3,554,621x = 25,801,858,679,809
5. Step 5: Solve for x
   x = 25,801,858,679,809/3,554,621
6. Step 6: Final answer
   x = 7,258,680.65