Finding the Third Proportional to 456,390 and 1,017,719

Step by Step Solution

1. Step 1: Write the proportion equation
   456,390 : 1,017,719 = 1,017,719 : x
2. Step 2: Convert to fraction form
   456,390/1,017,719 = 1,017,719/x
3. Step 3: Cross multiply
   456,390x = 1,017,719 × 1,017,719
4. Step 4: Simplify right side
   456,390x = 1,035,751,962,961
5. Step 5: Solve for x
   x = 1,035,751,962,961/456,390
6. Step 6: Final answer
   x = 2,269,444.91