Finding the Third Proportional to 1,005,400 and 2,191,454

Step by Step Solution

1. Step 1: Write the proportion equation
   1,005,400 : 2,191,454 = 2,191,454 : x
2. Step 2: Convert to fraction form
   1,005,400/2,191,454 = 2,191,454/x
3. Step 3: Cross multiply
   1,005,400x = 2,191,454 × 2,191,454
4. Step 4: Simplify right side
   1,005,400x = 4,802,470,634,116
5. Step 5: Solve for x
   x = 4,802,470,634,116/1,005,400
6. Step 6: Final answer
   x = 4,776,676.58