Finding the Third Proportional to 687,585 and 1,010,315

Step by Step Solution

1. Step 1: Write the proportion equation
   687,585 : 1,010,315 = 1,010,315 : x
2. Step 2: Convert to fraction form
   687,585/1,010,315 = 1,010,315/x
3. Step 3: Cross multiply
   687,585x = 1,010,315 × 1,010,315
4. Step 4: Simplify right side
   687,585x = 1,020,736,399,225
5. Step 5: Solve for x
   x = 1,020,736,399,225/687,585
6. Step 6: Final answer
   x = 1,484,523.95