Finding the Third Proportional to 2,427,918 and 5,318,385

Step by Step Solution

1. Step 1: Write the proportion equation
   2,427,918 : 5,318,385 = 5,318,385 : x
2. Step 2: Convert to fraction form
   2,427,918/5,318,385 = 5,318,385/x
3. Step 3: Cross multiply
   2,427,918x = 5,318,385 × 5,318,385
4. Step 4: Simplify right side
   2,427,918x = 28,285,219,008,225
5. Step 5: Solve for x
   x = 28,285,219,008,225/2,427,918
6. Step 6: Final answer
   x = 11,649,989.42