Finding the Third Proportional to 858,274 and 1,261,133

Step by Step Solution

1. Step 1: Write the proportion equation
   858,274 : 1,261,133 = 1,261,133 : x
2. Step 2: Convert to fraction form
   858,274/1,261,133 = 1,261,133/x
3. Step 3: Cross multiply
   858,274x = 1,261,133 × 1,261,133
4. Step 4: Simplify right side
   858,274x = 1,590,456,443,689
5. Step 5: Solve for x
   x = 1,590,456,443,689/858,274
6. Step 6: Final answer
   x = 1,853,087.06