Finding the Third Proportional to 1,554,479 and 3,345,155

Step by Step Solution

1. Step 1: Write the proportion equation
   1,554,479 : 3,345,155 = 3,345,155 : x
2. Step 2: Convert to fraction form
   1,554,479/3,345,155 = 3,345,155/x
3. Step 3: Cross multiply
   1,554,479x = 3,345,155 × 3,345,155
4. Step 4: Simplify right side
   1,554,479x = 11,190,061,974,025
5. Step 5: Solve for x
   x = 11,190,061,974,025/1,554,479
6. Step 6: Final answer
   x = 7,198,593.21