Finding the Third Proportional to 1,681,680 and 3,948,006

Step by Step Solution

1. Step 1: Write the proportion equation
   1,681,680 : 3,948,006 = 3,948,006 : x
2. Step 2: Convert to fraction form
   1,681,680/3,948,006 = 3,948,006/x
3. Step 3: Cross multiply
   1,681,680x = 3,948,006 × 3,948,006
4. Step 4: Simplify right side
   1,681,680x = 15,586,751,376,036
5. Step 5: Solve for x
   x = 15,586,751,376,036/1,681,680
6. Step 6: Final answer
   x = 9,268,559.64