Finding the Third Proportional to 1,331,220 and 2,872,392

Step by Step Solution

1. Step 1: Write the proportion equation
   1,331,220 : 2,872,392 = 2,872,392 : x
2. Step 2: Convert to fraction form
   1,331,220/2,872,392 = 2,872,392/x
3. Step 3: Cross multiply
   1,331,220x = 2,872,392 × 2,872,392
4. Step 4: Simplify right side
   1,331,220x = 8,250,635,801,664
5. Step 5: Solve for x
   x = 8,250,635,801,664/1,331,220
6. Step 6: Final answer
   x = 6,197,800.36