Finding the Third Proportional to 909,110 and 1,355,780

Step by Step Solution

1. Step 1: Write the proportion equation
   909,110 : 1,355,780 = 1,355,780 : x
2. Step 2: Convert to fraction form
   909,110/1,355,780 = 1,355,780/x
3. Step 3: Cross multiply
   909,110x = 1,355,780 × 1,355,780
4. Step 4: Simplify right side
   909,110x = 1,838,139,408,400
5. Step 5: Solve for x
   x = 1,838,139,408,400/909,110
6. Step 6: Final answer
   x = 2,021,910.89