Finding the Third Proportional to 575,068 and 870,662

Step by Step Solution

1. Step 1: Write the proportion equation
   575,068 : 870,662 = 870,662 : x
2. Step 2: Convert to fraction form
   575,068/870,662 = 870,662/x
3. Step 3: Cross multiply
   575,068x = 870,662 × 870,662
4. Step 4: Simplify right side
   575,068x = 758,052,318,244
5. Step 5: Solve for x
   x = 758,052,318,244/575,068
6. Step 6: Final answer
   x = 1,318,195.97