Finding the Third Proportional to 814,112 and 1,245,408

Step by Step Solution

1. Step 1: Write the proportion equation
   814,112 : 1,245,408 = 1,245,408 : x
2. Step 2: Convert to fraction form
   814,112/1,245,408 = 1,245,408/x
3. Step 3: Cross multiply
   814,112x = 1,245,408 × 1,245,408
4. Step 4: Simplify right side
   814,112x = 1,551,041,086,464
5. Step 5: Solve for x
   x = 1,551,041,086,464/814,112
6. Step 6: Final answer
   x = 1,905,193.74