Finding the Third Proportional to 1,778,792 and 3,889,738

Step by Step Solution

1. Step 1: Write the proportion equation
   1,778,792 : 3,889,738 = 3,889,738 : x
2. Step 2: Convert to fraction form
   1,778,792/3,889,738 = 3,889,738/x
3. Step 3: Cross multiply
   1,778,792x = 3,889,738 × 3,889,738
4. Step 4: Simplify right side
   1,778,792x = 15,130,061,708,644
5. Step 5: Solve for x
   x = 15,130,061,708,644/1,778,792
6. Step 6: Final answer
   x = 8,505,807.15