Finding the Third Proportional to 1,039,390 and 2,222,418

Step by Step Solution

1. Step 1: Write the proportion equation
   1,039,390 : 2,222,418 = 2,222,418 : x
2. Step 2: Convert to fraction form
   1,039,390/2,222,418 = 2,222,418/x
3. Step 3: Cross multiply
   1,039,390x = 2,222,418 × 2,222,418
4. Step 4: Simplify right side
   1,039,390x = 4,939,141,766,724
5. Step 5: Solve for x
   x = 4,939,141,766,724/1,039,390
6. Step 6: Final answer
   x = 4,751,961.98