Finding the Third Proportional to 858,650 and 1,864,792

Step by Step Solution

1. Step 1: Write the proportion equation
   858,650 : 1,864,792 = 1,864,792 : x
2. Step 2: Convert to fraction form
   858,650/1,864,792 = 1,864,792/x
3. Step 3: Cross multiply
   858,650x = 1,864,792 × 1,864,792
4. Step 4: Simplify right side
   858,650x = 3,477,449,203,264
5. Step 5: Solve for x
   x = 3,477,449,203,264/858,650
6. Step 6: Final answer
   x = 4,049,902.99