Finding the Third Proportional to 286,036 and 388,468.75

Step by Step Solution

1. Step 1: Write the proportion equation
   286,036 : 388,468.75 = 388,468.75 : x
2. Step 2: Convert to fraction form
   286,036/388,468.75 = 388,468.75/x
3. Step 3: Cross multiply
   286,036x = 388,468.75 × 388,468.75
4. Step 4: Simplify right side
   286,036x = 150,907,969,726.56
5. Step 5: Solve for x
   x = 150,907,969,726.56/286,036
6. Step 6: Final answer
   x = 527,583.83