Finding the Third Proportional to 897,604 and 1,921,290

Step by Step Solution

1. Step 1: Write the proportion equation
   897,604 : 1,921,290 = 1,921,290 : x
2. Step 2: Convert to fraction form
   897,604/1,921,290 = 1,921,290/x
3. Step 3: Cross multiply
   897,604x = 1,921,290 × 1,921,290
4. Step 4: Simplify right side
   897,604x = 3,691,355,264,100
5. Step 5: Solve for x
   x = 3,691,355,264,100/897,604
6. Step 6: Final answer
   x = 4,112,454.12