Finding the Third Proportional to 404,304 and 626,889

Step by Step Solution

1. Step 1: Write the proportion equation
   404,304 : 626,889 = 626,889 : x
2. Step 2: Convert to fraction form
   404,304/626,889 = 626,889/x
3. Step 3: Cross multiply
   404,304x = 626,889 × 626,889
4. Step 4: Simplify right side
   404,304x = 392,989,818,321
5. Step 5: Solve for x
   x = 392,989,818,321/404,304
6. Step 6: Final answer
   x = 972,015.66