Finding the Third Proportional to 729,408 and 1,516,800

Step by Step Solution

1. Step 1: Write the proportion equation
   729,408 : 1,516,800 = 1,516,800 : x
2. Step 2: Convert to fraction form
   729,408/1,516,800 = 1,516,800/x
3. Step 3: Cross multiply
   729,408x = 1,516,800 × 1,516,800
4. Step 4: Simplify right side
   729,408x = 2,300,682,240,000
5. Step 5: Solve for x
   x = 2,300,682,240,000/729,408
6. Step 6: Final answer
   x = 3,154,177.42