Finding the Third Proportional to 876,088 and 1,280,871

Step by Step Solution

1. Step 1: Write the proportion equation
   876,088 : 1,280,871 = 1,280,871 : x
2. Step 2: Convert to fraction form
   876,088/1,280,871 = 1,280,871/x
3. Step 3: Cross multiply
   876,088x = 1,280,871 × 1,280,871
4. Step 4: Simplify right side
   876,088x = 1,640,630,518,641
5. Step 5: Solve for x
   x = 1,640,630,518,641/876,088
6. Step 6: Final answer
   x = 1,872,677.77