Finding the Third Proportional to 574,920 and 1,222,416

Step by Step Solution

1. Step 1: Write the proportion equation
   574,920 : 1,222,416 = 1,222,416 : x
2. Step 2: Convert to fraction form
   574,920/1,222,416 = 1,222,416/x
3. Step 3: Cross multiply
   574,920x = 1,222,416 × 1,222,416
4. Step 4: Simplify right side
   574,920x = 1,494,300,877,056
5. Step 5: Solve for x
   x = 1,494,300,877,056/574,920
6. Step 6: Final answer
   x = 2,599,145.75