Finding the Third Proportional to 1,228,968 and 1,789,416

Step by Step Solution

1. Step 1: Write the proportion equation
   1,228,968 : 1,789,416 = 1,789,416 : x
2. Step 2: Convert to fraction form
   1,228,968/1,789,416 = 1,789,416/x
3. Step 3: Cross multiply
   1,228,968x = 1,789,416 × 1,789,416
4. Step 4: Simplify right side
   1,228,968x = 3,202,009,621,056
5. Step 5: Solve for x
   x = 3,202,009,621,056/1,228,968
6. Step 6: Final answer
   x = 2,605,445.89