Finding the Third Proportional to 1,220,864 and 1,867,584

Step by Step Solution

1. Step 1: Write the proportion equation
   1,220,864 : 1,867,584 = 1,867,584 : x
2. Step 2: Convert to fraction form
   1,220,864/1,867,584 = 1,867,584/x
3. Step 3: Cross multiply
   1,220,864x = 1,867,584 × 1,867,584
4. Step 4: Simplify right side
   1,220,864x = 3,487,869,997,056
5. Step 5: Solve for x
   x = 3,487,869,997,056/1,220,864
6. Step 6: Final answer
   x = 2,856,886.60