Finding the Third Proportional to 1,554,490 and 3,345,179

Step by Step Solution

1. Step 1: Write the proportion equation
   1,554,490 : 3,345,179 = 3,345,179 : x
2. Step 2: Convert to fraction form
   1,554,490/3,345,179 = 3,345,179/x
3. Step 3: Cross multiply
   1,554,490x = 3,345,179 × 3,345,179
4. Step 4: Simplify right side
   1,554,490x = 11,190,222,542,041
5. Step 5: Solve for x
   x = 11,190,222,542,041/1,554,490
6. Step 6: Final answer
   x = 7,198,645.56