Finding the Third Proportional to 388,870 and 599,901

Step by Step Solution

1. Step 1: Write the proportion equation
   388,870 : 599,901 = 599,901 : x
2. Step 2: Convert to fraction form
   388,870/599,901 = 599,901/x
3. Step 3: Cross multiply
   388,870x = 599,901 × 599,901
4. Step 4: Simplify right side
   388,870x = 359,881,209,801
5. Step 5: Solve for x
   x = 359,881,209,801/388,870
6. Step 6: Final answer
   x = 925,453.78