Finding the Third Proportional to 3,660,168 and 5,280,276

Step by Step Solution

1. Step 1: Write the proportion equation
   3,660,168 : 5,280,276 = 5,280,276 : x
2. Step 2: Convert to fraction form
   3,660,168/5,280,276 = 5,280,276/x
3. Step 3: Cross multiply
   3,660,168x = 5,280,276 × 5,280,276
4. Step 4: Simplify right side
   3,660,168x = 27,881,314,636,176
5. Step 5: Solve for x
   x = 27,881,314,636,176/3,660,168
6. Step 6: Final answer
   x = 7,617,495.87