Finding the Third Proportional to 1,403,136 and 3,086,208

Step by Step Solution

1. Step 1: Write the proportion equation
   1,403,136 : 3,086,208 = 3,086,208 : x
2. Step 2: Convert to fraction form
   1,403,136/3,086,208 = 3,086,208/x
3. Step 3: Cross multiply
   1,403,136x = 3,086,208 × 3,086,208
4. Step 4: Simplify right side
   1,403,136x = 9,524,679,819,264
5. Step 5: Solve for x
   x = 9,524,679,819,264/1,403,136
6. Step 6: Final answer
   x = 6,788,137.30