Finding the Third Proportional to 386,424 and 591,162

Step by Step Solution

1. Step 1: Write the proportion equation
   386,424 : 591,162 = 591,162 : x
2. Step 2: Convert to fraction form
   386,424/591,162 = 591,162/x
3. Step 3: Cross multiply
   386,424x = 591,162 × 591,162
4. Step 4: Simplify right side
   386,424x = 349,472,510,244
5. Step 5: Solve for x
   x = 349,472,510,244/386,424
6. Step 6: Final answer
   x = 904,375.79