Finding the Third Proportional to 831,170 and 1,817,860

Step by Step Solution

1. Step 1: Write the proportion equation
   831,170 : 1,817,860 = 1,817,860 : x
2. Step 2: Convert to fraction form
   831,170/1,817,860 = 1,817,860/x
3. Step 3: Cross multiply
   831,170x = 1,817,860 × 1,817,860
4. Step 4: Simplify right side
   831,170x = 3,304,614,979,600
5. Step 5: Solve for x
   x = 3,304,614,979,600/831,170
6. Step 6: Final answer
   x = 3,975,859.31