Finding the Third Proportional to 1,681,836 and 3,948,396

Step by Step Solution

1. Step 1: Write the proportion equation
   1,681,836 : 3,948,396 = 3,948,396 : x
2. Step 2: Convert to fraction form
   1,681,836/3,948,396 = 3,948,396/x
3. Step 3: Cross multiply
   1,681,836x = 3,948,396 × 3,948,396
4. Step 4: Simplify right side
   1,681,836x = 15,589,830,972,816
5. Step 5: Solve for x
   x = 15,589,830,972,816/1,681,836
6. Step 6: Final answer
   x = 9,269,531.02