Finding the Third Proportional to 872,654 and 1,280,250

Step by Step Solution

1. Step 1: Write the proportion equation
   872,654 : 1,280,250 = 1,280,250 : x
2. Step 2: Convert to fraction form
   872,654/1,280,250 = 1,280,250/x
3. Step 3: Cross multiply
   872,654x = 1,280,250 × 1,280,250
4. Step 4: Simplify right side
   872,654x = 1,639,040,062,500
5. Step 5: Solve for x
   x = 1,639,040,062,500/872,654
6. Step 6: Final answer
   x = 1,878,224.43