Finding the Third Proportional to 872,721 and 1,851,084

Step by Step Solution

1. Step 1: Write the proportion equation
   872,721 : 1,851,084 = 1,851,084 : x
2. Step 2: Convert to fraction form
   872,721/1,851,084 = 1,851,084/x
3. Step 3: Cross multiply
   872,721x = 1,851,084 × 1,851,084
4. Step 4: Simplify right side
   872,721x = 3,426,511,975,056
5. Step 5: Solve for x
   x = 3,426,511,975,056/872,721
6. Step 6: Final answer
   x = 3,926,239.86