Finding the Third Proportional to 758,408 and 1,142,424

Step by Step Solution

1. Step 1: Write the proportion equation
   758,408 : 1,142,424 = 1,142,424 : x
2. Step 2: Convert to fraction form
   758,408/1,142,424 = 1,142,424/x
3. Step 3: Cross multiply
   758,408x = 1,142,424 × 1,142,424
4. Step 4: Simplify right side
   758,408x = 1,305,132,595,776
5. Step 5: Solve for x
   x = 1,305,132,595,776/758,408
6. Step 6: Final answer
   x = 1,720,884.53