Finding the Third Proportional to 1,778,608 and 3,902,896

Step by Step Solution

1. Step 1: Write the proportion equation
   1,778,608 : 3,902,896 = 3,902,896 : x
2. Step 2: Convert to fraction form
   1,778,608/3,902,896 = 3,902,896/x
3. Step 3: Cross multiply
   1,778,608x = 3,902,896 × 3,902,896
4. Step 4: Simplify right side
   1,778,608x = 15,232,597,186,816
5. Step 5: Solve for x
   x = 15,232,597,186,816/1,778,608
6. Step 6: Final answer
   x = 8,564,336.37