Finding the Third Proportional to 1,015,412 and 2,205,888

Step by Step Solution

1. Step 1: Write the proportion equation
   1,015,412 : 2,205,888 = 2,205,888 : x
2. Step 2: Convert to fraction form
   1,015,412/2,205,888 = 2,205,888/x
3. Step 3: Cross multiply
   1,015,412x = 2,205,888 × 2,205,888
4. Step 4: Simplify right side
   1,015,412x = 4,865,941,868,544
5. Step 5: Solve for x
   x = 4,865,941,868,544/1,015,412
6. Step 6: Final answer
   x = 4,792,086.24