Finding the Third Proportional to 1,017,480 and 2,209,920

Step by Step Solution

1. Step 1: Write the proportion equation
   1,017,480 : 2,209,920 = 2,209,920 : x
2. Step 2: Convert to fraction form
   1,017,480/2,209,920 = 2,209,920/x
3. Step 3: Cross multiply
   1,017,480x = 2,209,920 × 2,209,920
4. Step 4: Simplify right side
   1,017,480x = 4,883,746,406,400
5. Step 5: Solve for x
   x = 4,883,746,406,400/1,017,480
6. Step 6: Final answer
   x = 4,799,845.11