Finding the Third Proportional to 1,556,320 and 3,345,136

Step by Step Solution

1. Step 1: Write the proportion equation
   1,556,320 : 3,345,136 = 3,345,136 : x
2. Step 2: Convert to fraction form
   1,556,320/3,345,136 = 3,345,136/x
3. Step 3: Cross multiply
   1,556,320x = 3,345,136 × 3,345,136
4. Step 4: Simplify right side
   1,556,320x = 11,189,934,858,496
5. Step 5: Solve for x
   x = 11,189,934,858,496/1,556,320
6. Step 6: Final answer
   x = 7,189,996.18