Finding the Third Proportional to 1,355,388 and 1,806,939

Step by Step Solution

1. Step 1: Write the proportion equation
   1,355,388 : 1,806,939 = 1,806,939 : x
2. Step 2: Convert to fraction form
   1,355,388/1,806,939 = 1,806,939/x
3. Step 3: Cross multiply
   1,355,388x = 1,806,939 × 1,806,939
4. Step 4: Simplify right side
   1,355,388x = 3,265,028,549,721
5. Step 5: Solve for x
   x = 3,265,028,549,721/1,355,388
6. Step 6: Final answer
   x = 2,408,925.38