Finding the Third Proportional to 199,096 and 308,309

Step by Step Solution

1. Step 1: Write the proportion equation
   199,096 : 308,309 = 308,309 : x
2. Step 2: Convert to fraction form
   199,096/308,309 = 308,309/x
3. Step 3: Cross multiply
   199,096x = 308,309 × 308,309
4. Step 4: Simplify right side
   199,096x = 95,054,439,481
5. Step 5: Solve for x
   x = 95,054,439,481/199,096
6. Step 6: Final answer
   x = 477,430.18