Finding the Third Proportional to 921,608 and 2,020,360

Step by Step Solution

1. Step 1: Write the proportion equation
   921,608 : 2,020,360 = 2,020,360 : x
2. Step 2: Convert to fraction form
   921,608/2,020,360 = 2,020,360/x
3. Step 3: Cross multiply
   921,608x = 2,020,360 × 2,020,360
4. Step 4: Simplify right side
   921,608x = 4,081,854,529,600
5. Step 5: Solve for x
   x = 4,081,854,529,600/921,608
6. Step 6: Final answer
   x = 4,429,057.18