Finding the Third Proportional to 921,570 and 2,020,287

Step by Step Solution

1. Step 1: Write the proportion equation
   921,570 : 2,020,287 = 2,020,287 : x
2. Step 2: Convert to fraction form
   921,570/2,020,287 = 2,020,287/x
3. Step 3: Cross multiply
   921,570x = 2,020,287 × 2,020,287
4. Step 4: Simplify right side
   921,570x = 4,081,559,562,369
5. Step 5: Solve for x
   x = 4,081,559,562,369/921,570
6. Step 6: Final answer
   x = 4,428,919.74