Finding the Third Proportional to 1,683,945 and 3,690,798

Step by Step Solution

1. Step 1: Write the proportion equation
   1,683,945 : 3,690,798 = 3,690,798 : x
2. Step 2: Convert to fraction form
   1,683,945/3,690,798 = 3,690,798/x
3. Step 3: Cross multiply
   1,683,945x = 3,690,798 × 3,690,798
4. Step 4: Simplify right side
   1,683,945x = 13,621,989,876,804
5. Step 5: Solve for x
   x = 13,621,989,876,804/1,683,945
6. Step 6: Final answer
   x = 8,089,331.82