Finding the Third Proportional to 1,016,388 and 1,393,660

Step by Step Solution

1. Step 1: Write the proportion equation
   1,016,388 : 1,393,660 = 1,393,660 : x
2. Step 2: Convert to fraction form
   1,016,388/1,393,660 = 1,393,660/x
3. Step 3: Cross multiply
   1,016,388x = 1,393,660 × 1,393,660
4. Step 4: Simplify right side
   1,016,388x = 1,942,288,195,600
5. Step 5: Solve for x
   x = 1,942,288,195,600/1,016,388
6. Step 6: Final answer
   x = 1,910,971.20