Finding the Third Proportional to 1,005,408 and 2,154,738

Step by Step Solution

1. Step 1: Write the proportion equation
   1,005,408 : 2,154,738 = 2,154,738 : x
2. Step 2: Convert to fraction form
   1,005,408/2,154,738 = 2,154,738/x
3. Step 3: Cross multiply
   1,005,408x = 2,154,738 × 2,154,738
4. Step 4: Simplify right side
   1,005,408x = 4,642,895,848,644
5. Step 5: Solve for x
   x = 4,642,895,848,644/1,005,408
6. Step 6: Final answer
   x = 4,617,922.13