Finding the Third Proportional to 1,973,405 and 4,315,867

Step by Step Solution

1. Step 1: Write the proportion equation
   1,973,405 : 4,315,867 = 4,315,867 : x
2. Step 2: Convert to fraction form
   1,973,405/4,315,867 = 4,315,867/x
3. Step 3: Cross multiply
   1,973,405x = 4,315,867 × 4,315,867
4. Step 4: Simplify right side
   1,973,405x = 18,626,707,961,689
5. Step 5: Solve for x
   x = 18,626,707,961,689/1,973,405
6. Step 6: Final answer
   x = 9,438,867.32