Finding the Third Proportional to 831,213 and 1,817,946

Step by Step Solution

1. Step 1: Write the proportion equation
   831,213 : 1,817,946 = 1,817,946 : x
2. Step 2: Convert to fraction form
   831,213/1,817,946 = 1,817,946/x
3. Step 3: Cross multiply
   831,213x = 1,817,946 × 1,817,946
4. Step 4: Simplify right side
   831,213x = 3,304,927,658,916
5. Step 5: Solve for x
   x = 3,304,927,658,916/831,213
6. Step 6: Final answer
   x = 3,976,029.80