Finding the Third Proportional to 509,490 and 1,079,667

Step by Step Solution

1. Step 1: Write the proportion equation
   509,490 : 1,079,667 = 1,079,667 : x
2. Step 2: Convert to fraction form
   509,490/1,079,667 = 1,079,667/x
3. Step 3: Cross multiply
   509,490x = 1,079,667 × 1,079,667
4. Step 4: Simplify right side
   509,490x = 1,165,680,830,889
5. Step 5: Solve for x
   x = 1,165,680,830,889/509,490
6. Step 6: Final answer
   x = 2,287,936.62