Finding the Third Proportional to 831,173 and 1,817,865

Step by Step Solution

1. Step 1: Write the proportion equation
   831,173 : 1,817,865 = 1,817,865 : x
2. Step 2: Convert to fraction form
   831,173/1,817,865 = 1,817,865/x
3. Step 3: Cross multiply
   831,173x = 1,817,865 × 1,817,865
4. Step 4: Simplify right side
   831,173x = 3,304,633,158,225
5. Step 5: Solve for x
   x = 3,304,633,158,225/831,173
6. Step 6: Final answer
   x = 3,975,866.83