Finding the Third Proportional to 1,778,596 and 3,902,872

Step by Step Solution

1. Step 1: Write the proportion equation
   1,778,596 : 3,902,872 = 3,902,872 : x
2. Step 2: Convert to fraction form
   1,778,596/3,902,872 = 3,902,872/x
3. Step 3: Cross multiply
   1,778,596x = 3,902,872 × 3,902,872
4. Step 4: Simplify right side
   1,778,596x = 15,232,409,848,384
5. Step 5: Solve for x
   x = 15,232,409,848,384/1,778,596
6. Step 6: Final answer
   x = 8,564,288.83