Finding the Third Proportional to 868,626 and 1,253,112

Step by Step Solution

1. Step 1: Write the proportion equation
   868,626 : 1,253,112 = 1,253,112 : x
2. Step 2: Convert to fraction form
   868,626/1,253,112 = 1,253,112/x
3. Step 3: Cross multiply
   868,626x = 1,253,112 × 1,253,112
4. Step 4: Simplify right side
   868,626x = 1,570,289,684,544
5. Step 5: Solve for x
   x = 1,570,289,684,544/868,626
6. Step 6: Final answer
   x = 1,807,785.73