Finding the Third Proportional to 1,355,636 and 2,921,386

Step by Step Solution

1. Step 1: Write the proportion equation
   1,355,636 : 2,921,386 = 2,921,386 : x
2. Step 2: Convert to fraction form
   1,355,636/2,921,386 = 2,921,386/x
3. Step 3: Cross multiply
   1,355,636x = 2,921,386 × 2,921,386
4. Step 4: Simplify right side
   1,355,636x = 8,534,496,160,996
5. Step 5: Solve for x
   x = 8,534,496,160,996/1,355,636
6. Step 6: Final answer
   x = 6,295,566.19