Finding the Third Proportional to 2,158,374 and 3,118,218

Step by Step Solution

1. Step 1: Write the proportion equation
   2,158,374 : 3,118,218 = 3,118,218 : x
2. Step 2: Convert to fraction form
   2,158,374/3,118,218 = 3,118,218/x
3. Step 3: Cross multiply
   2,158,374x = 3,118,218 × 3,118,218
4. Step 4: Simplify right side
   2,158,374x = 9,723,283,495,524
5. Step 5: Solve for x
   x = 9,723,283,495,524/2,158,374
6. Step 6: Final answer
   x = 4,504,911.33