Finding the Third Proportional to 2,178,476 and 4,787,008

Step by Step Solution

1. Step 1: Write the proportion equation
   2,178,476 : 4,787,008 = 4,787,008 : x
2. Step 2: Convert to fraction form
   2,178,476/4,787,008 = 4,787,008/x
3. Step 3: Cross multiply
   2,178,476x = 4,787,008 × 4,787,008
4. Step 4: Simplify right side
   2,178,476x = 22,915,445,592,064
5. Step 5: Solve for x
   x = 22,915,445,592,064/2,178,476
6. Step 6: Final answer
   x = 10,519,025.96