Finding the Third Proportional to 2,430,396 and 5,318,280

Step by Step Solution

1. Step 1: Write the proportion equation
   2,430,396 : 5,318,280 = 5,318,280 : x
2. Step 2: Convert to fraction form
   2,430,396/5,318,280 = 5,318,280/x
3. Step 3: Cross multiply
   2,430,396x = 5,318,280 × 5,318,280
4. Step 4: Simplify right side
   2,430,396x = 28,284,102,158,400
5. Step 5: Solve for x
   x = 28,284,102,158,400/2,430,396
6. Step 6: Final answer
   x = 11,637,651.71