Finding the Third Proportional to 3,660,228 and 5,280,326

Step by Step Solution

1. Step 1: Write the proportion equation
   3,660,228 : 5,280,326 = 5,280,326 : x
2. Step 2: Convert to fraction form
   3,660,228/5,280,326 = 5,280,326/x
3. Step 3: Cross multiply
   3,660,228x = 5,280,326 × 5,280,326
4. Step 4: Simplify right side
   3,660,228x = 27,881,842,666,276
5. Step 5: Solve for x
   x = 27,881,842,666,276/3,660,228
6. Step 6: Final answer
   x = 7,617,515.27