Finding the Third Proportional to 200,972 and 304,055

Step by Step Solution

1. Step 1: Write the proportion equation
   200,972 : 304,055 = 304,055 : x
2. Step 2: Convert to fraction form
   200,972/304,055 = 304,055/x
3. Step 3: Cross multiply
   200,972x = 304,055 × 304,055
4. Step 4: Simplify right side
   200,972x = 92,449,443,025
5. Step 5: Solve for x
   x = 92,449,443,025/200,972
6. Step 6: Final answer
   x = 460,011.56