Finding the Third Proportional to 872,706 and 1,869,828

Step by Step Solution

1. Step 1: Write the proportion equation
   872,706 : 1,869,828 = 1,869,828 : x
2. Step 2: Convert to fraction form
   872,706/1,869,828 = 1,869,828/x
3. Step 3: Cross multiply
   872,706x = 1,869,828 × 1,869,828
4. Step 4: Simplify right side
   872,706x = 3,496,256,749,584
5. Step 5: Solve for x
   x = 3,496,256,749,584/872,706
6. Step 6: Final answer
   x = 4,006,225.18