Finding the Third Proportional to 386,320 and 591,008

Step by Step Solution

1. Step 1: Write the proportion equation
   386,320 : 591,008 = 591,008 : x
2. Step 2: Convert to fraction form
   386,320/591,008 = 591,008/x
3. Step 3: Cross multiply
   386,320x = 591,008 × 591,008
4. Step 4: Simplify right side
   386,320x = 349,290,456,064
5. Step 5: Solve for x
   x = 349,290,456,064/386,320
6. Step 6: Final answer
   x = 904,148.00