Finding the Third Proportional to 876,087.25 and 1,280,870.25

Step by Step Solution

1. Step 1: Write the proportion equation
   876,087.25 : 1,280,870.25 = 1,280,870.25 : x
2. Step 2: Convert to fraction form
   876,087.25/1,280,870.25 = 1,280,870.25/x
3. Step 3: Cross multiply
   876,087.25x = 1,280,870.25 × 1,280,870.25
4. Step 4: Simplify right side
   876,087.25x = 1,640,628,597,335.06
5. Step 5: Solve for x
   x = 1,640,628,597,335.06/876,087.25
6. Step 6: Final answer
   x = 1,872,677.18