Finding the Third Proportional to 1,778,789 and 3,889,732

Step by Step Solution

1. Step 1: Write the proportion equation
   1,778,789 : 3,889,732 = 3,889,732 : x
2. Step 2: Convert to fraction form
   1,778,789/3,889,732 = 3,889,732/x
3. Step 3: Cross multiply
   1,778,789x = 3,889,732 × 3,889,732
4. Step 4: Simplify right side
   1,778,789x = 15,130,015,031,824
5. Step 5: Solve for x
   x = 15,130,015,031,824/1,778,789
6. Step 6: Final answer
   x = 8,505,795.25