Finding the Third Proportional to 831,210 and 1,817,940

Step by Step Solution

1. Step 1: Write the proportion equation
   831,210 : 1,817,940 = 1,817,940 : x
2. Step 2: Convert to fraction form
   831,210/1,817,940 = 1,817,940/x
3. Step 3: Cross multiply
   831,210x = 1,817,940 × 1,817,940
4. Step 4: Simplify right side
   831,210x = 3,304,905,843,600
5. Step 5: Solve for x
   x = 3,304,905,843,600/831,210
6. Step 6: Final answer
   x = 3,976,017.91