Finding the Third Proportional to 1,663,626 and 3,405,943

Step by Step Solution

1. Step 1: Write the proportion equation
   1,663,626 : 3,405,943 = 3,405,943 : x
2. Step 2: Convert to fraction form
   1,663,626/3,405,943 = 3,405,943/x
3. Step 3: Cross multiply
   1,663,626x = 3,405,943 × 3,405,943
4. Step 4: Simplify right side
   1,663,626x = 11,600,447,719,249
5. Step 5: Solve for x
   x = 11,600,447,719,249/1,663,626
6. Step 6: Final answer
   x = 6,972,990.15