Finding the Third Proportional to 2,430,400 and 5,318,288

Step by Step Solution

1. Step 1: Write the proportion equation
   2,430,400 : 5,318,288 = 5,318,288 : x
2. Step 2: Convert to fraction form
   2,430,400/5,318,288 = 5,318,288/x
3. Step 3: Cross multiply
   2,430,400x = 5,318,288 × 5,318,288
4. Step 4: Simplify right side
   2,430,400x = 28,284,187,250,944
5. Step 5: Solve for x
   x = 28,284,187,250,944/2,430,400
6. Step 6: Final answer
   x = 11,637,667.57