Finding the Third Proportional to 386,696 and 597,540

Step by Step Solution

1. Step 1: Write the proportion equation
   386,696 : 597,540 = 597,540 : x
2. Step 2: Convert to fraction form
   386,696/597,540 = 597,540/x
3. Step 3: Cross multiply
   386,696x = 597,540 × 597,540
4. Step 4: Simplify right side
   386,696x = 357,054,051,600
5. Step 5: Solve for x
   x = 357,054,051,600/386,696
6. Step 6: Final answer
   x = 923,345.60