Finding the Third Proportional to 281,663 and 626,300

Step by Step Solution

1. Step 1: Write the proportion equation
   281,663 : 626,300 = 626,300 : x
2. Step 2: Convert to fraction form
   281,663/626,300 = 626,300/x
3. Step 3: Cross multiply
   281,663x = 626,300 × 626,300
4. Step 4: Simplify right side
   281,663x = 392,251,690,000
5. Step 5: Solve for x
   x = 392,251,690,000/281,663
6. Step 6: Final answer
   x = 1,392,627.68