Finding the Third Proportional to 687,024 and 1,010,640

Step by Step Solution

1. Step 1: Write the proportion equation
   687,024 : 1,010,640 = 1,010,640 : x
2. Step 2: Convert to fraction form
   687,024/1,010,640 = 1,010,640/x
3. Step 3: Cross multiply
   687,024x = 1,010,640 × 1,010,640
4. Step 4: Simplify right side
   687,024x = 1,021,393,209,600
5. Step 5: Solve for x
   x = 1,021,393,209,600/687,024
6. Step 6: Final answer
   x = 1,486,692.18