Finding the Third Proportional to 199,091 and 308,303

Step by Step Solution

1. Step 1: Write the proportion equation
   199,091 : 308,303 = 308,303 : x
2. Step 2: Convert to fraction form
   199,091/308,303 = 308,303/x
3. Step 3: Cross multiply
   199,091x = 308,303 × 308,303
4. Step 4: Simplify right side
   199,091x = 95,050,739,809
5. Step 5: Solve for x
   x = 95,050,739,809/199,091
6. Step 6: Final answer
   x = 477,423.59