Finding the Third Proportional to 875,120 and 1,921,308

Step by Step Solution

1. Step 1: Write the proportion equation
   875,120 : 1,921,308 = 1,921,308 : x
2. Step 2: Convert to fraction form
   875,120/1,921,308 = 1,921,308/x
3. Step 3: Cross multiply
   875,120x = 1,921,308 × 1,921,308
4. Step 4: Simplify right side
   875,120x = 3,691,424,430,864
5. Step 5: Solve for x
   x = 3,691,424,430,864/875,120
6. Step 6: Final answer
   x = 4,218,192.28