Finding the Third Proportional to 2,387,644 and 4,915,255

Step by Step Solution

1. Step 1: Write the proportion equation
   2,387,644 : 4,915,255 = 4,915,255 : x
2. Step 2: Convert to fraction form
   2,387,644/4,915,255 = 4,915,255/x
3. Step 3: Cross multiply
   2,387,644x = 4,915,255 × 4,915,255
4. Step 4: Simplify right side
   2,387,644x = 24,159,731,715,025
5. Step 5: Solve for x
   x = 24,159,731,715,025/2,387,644
6. Step 6: Final answer
   x = 10,118,649.06