Finding the Third Proportional to 628,248 and 1,000,636

Step by Step Solution

1. Step 1: Write the proportion equation
   628,248 : 1,000,636 = 1,000,636 : x
2. Step 2: Convert to fraction form
   628,248/1,000,636 = 1,000,636/x
3. Step 3: Cross multiply
   628,248x = 1,000,636 × 1,000,636
4. Step 4: Simplify right side
   628,248x = 1,001,272,404,496
5. Step 5: Solve for x
   x = 1,001,272,404,496/628,248
6. Step 6: Final answer
   x = 1,593,753.43