Finding the Third Proportional to 2,430,380 and 5,318,240

Step by Step Solution

1. Step 1: Write the proportion equation
   2,430,380 : 5,318,240 = 5,318,240 : x
2. Step 2: Convert to fraction form
   2,430,380/5,318,240 = 5,318,240/x
3. Step 3: Cross multiply
   2,430,380x = 5,318,240 × 5,318,240
4. Step 4: Simplify right side
   2,430,380x = 28,283,676,697,600
5. Step 5: Solve for x
   x = 28,283,676,697,600/2,430,380
6. Step 6: Final answer
   x = 11,637,553.26