Finding the Third Proportional to 1,691,678 and 3,719,824

Step by Step Solution

1. Step 1: Write the proportion equation
   1,691,678 : 3,719,824 = 3,719,824 : x
2. Step 2: Convert to fraction form
   1,691,678/3,719,824 = 3,719,824/x
3. Step 3: Cross multiply
   1,691,678x = 3,719,824 × 3,719,824
4. Step 4: Simplify right side
   1,691,678x = 13,837,090,590,976
5. Step 5: Solve for x
   x = 13,837,090,590,976/1,691,678
6. Step 6: Final answer
   x = 8,179,506.14