Finding the Third Proportional to 356,132 and 725,456

Step by Step Solution

1. Step 1: Write the proportion equation
   356,132 : 725,456 = 725,456 : x
2. Step 2: Convert to fraction form
   356,132/725,456 = 725,456/x
3. Step 3: Cross multiply
   356,132x = 725,456 × 725,456
4. Step 4: Simplify right side
   356,132x = 526,286,407,936
5. Step 5: Solve for x
   x = 526,286,407,936/356,132
6. Step 6: Final answer
   x = 1,477,784.66