Finding the Third Proportional to 332,641.50 and 521,112

Step by Step Solution

1. Step 1: Write the proportion equation
   332,641.50 : 521,112 = 521,112 : x
2. Step 2: Convert to fraction form
   332,641.50/521,112 = 521,112/x
3. Step 3: Cross multiply
   332,641.50x = 521,112 × 521,112
4. Step 4: Simplify right side
   332,641.50x = 271,557,716,544
5. Step 5: Solve for x
   x = 271,557,716,544/332,641.50
6. Step 6: Final answer
   x = 816,367.52