Finding the Third Proportional to 194,109 and 308,658

Step by Step Solution

1. Step 1: Write the proportion equation
   194,109 : 308,658 = 308,658 : x
2. Step 2: Convert to fraction form
   194,109/308,658 = 308,658/x
3. Step 3: Cross multiply
   194,109x = 308,658 × 308,658
4. Step 4: Simplify right side
   194,109x = 95,269,760,964
5. Step 5: Solve for x
   x = 95,269,760,964/194,109
6. Step 6: Final answer
   x = 490,805.48