Finding the Third Proportional to 3,660,260 and 5,280,374

Step by Step Solution

1. Step 1: Write the proportion equation
   3,660,260 : 5,280,374 = 5,280,374 : x
2. Step 2: Convert to fraction form
   3,660,260/5,280,374 = 5,280,374/x
3. Step 3: Cross multiply
   3,660,260x = 5,280,374 × 5,280,374
4. Step 4: Simplify right side
   3,660,260x = 27,882,349,579,876
5. Step 5: Solve for x
   x = 27,882,349,579,876/3,660,260
6. Step 6: Final answer
   x = 7,617,587.16