Finding the Third Proportional to 1,197,288 and 1,858,890

Step by Step Solution

1. Step 1: Write the proportion equation
   1,197,288 : 1,858,890 = 1,858,890 : x
2. Step 2: Convert to fraction form
   1,197,288/1,858,890 = 1,858,890/x
3. Step 3: Cross multiply
   1,197,288x = 1,858,890 × 1,858,890
4. Step 4: Simplify right side
   1,197,288x = 3,455,472,032,100
5. Step 5: Solve for x
   x = 3,455,472,032,100/1,197,288
6. Step 6: Final answer
   x = 2,886,082.57