Finding the Third Proportional to 2,118,530 and 2,720,136

Step by Step Solution

1. Step 1: Write the proportion equation
   2,118,530 : 2,720,136 = 2,720,136 : x
2. Step 2: Convert to fraction form
   2,118,530/2,720,136 = 2,720,136/x
3. Step 3: Cross multiply
   2,118,530x = 2,720,136 × 2,720,136
4. Step 4: Simplify right side
   2,118,530x = 7,399,139,858,496
5. Step 5: Solve for x
   x = 7,399,139,858,496/2,118,530
6. Step 6: Final answer
   x = 3,492,582.05