Finding the Third Proportional to 1,317,920 and 2,892,448

Step by Step Solution

1. Step 1: Write the proportion equation
   1,317,920 : 2,892,448 = 2,892,448 : x
2. Step 2: Convert to fraction form
   1,317,920/2,892,448 = 2,892,448/x
3. Step 3: Cross multiply
   1,317,920x = 2,892,448 × 2,892,448
4. Step 4: Simplify right side
   1,317,920x = 8,366,255,432,704
5. Step 5: Solve for x
   x = 8,366,255,432,704/1,317,920
6. Step 6: Final answer
   x = 6,348,075.33