Finding the Third Proportional to 909,165 and 1,912,290

Step by Step Solution

1. Step 1: Write the proportion equation
   909,165 : 1,912,290 = 1,912,290 : x
2. Step 2: Convert to fraction form
   909,165/1,912,290 = 1,912,290/x
3. Step 3: Cross multiply
   909,165x = 1,912,290 × 1,912,290
4. Step 4: Simplify right side
   909,165x = 3,656,853,044,100
5. Step 5: Solve for x
   x = 3,656,853,044,100/909,165
6. Step 6: Final answer
   x = 4,022,210.54