Finding the Third Proportional to 858,978 and 1,831,708

Step by Step Solution

1. Step 1: Write the proportion equation
   858,978 : 1,831,708 = 1,831,708 : x
2. Step 2: Convert to fraction form
   858,978/1,831,708 = 1,831,708/x
3. Step 3: Cross multiply
   858,978x = 1,831,708 × 1,831,708
4. Step 4: Simplify right side
   858,978x = 3,355,154,197,264
5. Step 5: Solve for x
   x = 3,355,154,197,264/858,978
6. Step 6: Final answer
   x = 3,905,983.85