Finding the Third Proportional to 3,660,186 and 5,280,303

Step by Step Solution

1. Step 1: Write the proportion equation
   3,660,186 : 5,280,303 = 5,280,303 : x
2. Step 2: Convert to fraction form
   3,660,186/5,280,303 = 5,280,303/x
3. Step 3: Cross multiply
   3,660,186x = 5,280,303 × 5,280,303
4. Step 4: Simplify right side
   3,660,186x = 27,881,599,771,809
5. Step 5: Solve for x
   x = 27,881,599,771,809/3,660,186
6. Step 6: Final answer
   x = 7,617,536.31