Finding the Third Proportional to 468,087 and 685,468

Step by Step Solution

1. Step 1: Write the proportion equation
   468,087 : 685,468 = 685,468 : x
2. Step 2: Convert to fraction form
   468,087/685,468 = 685,468/x
3. Step 3: Cross multiply
   468,087x = 685,468 × 685,468
4. Step 4: Simplify right side
   468,087x = 469,866,379,024
5. Step 5: Solve for x
   x = 469,866,379,024/468,087
6. Step 6: Final answer
   x = 1,003,801.39