Finding the Third Proportional to 1,318,144 and 2,877,920

Step by Step Solution

1. Step 1: Write the proportion equation
   1,318,144 : 2,877,920 = 2,877,920 : x
2. Step 2: Convert to fraction form
   1,318,144/2,877,920 = 2,877,920/x
3. Step 3: Cross multiply
   1,318,144x = 2,877,920 × 2,877,920
4. Step 4: Simplify right side
   1,318,144x = 8,282,423,526,400
5. Step 5: Solve for x
   x = 8,282,423,526,400/1,318,144
6. Step 6: Final answer
   x = 6,283,398.12