Finding the Third Proportional to 4,280,484 and 8,915,264

Step by Step Solution

1. Step 1: Write the proportion equation
   4,280,484 : 8,915,264 = 8,915,264 : x
2. Step 2: Convert to fraction form
   4,280,484/8,915,264 = 8,915,264/x
3. Step 3: Cross multiply
   4,280,484x = 8,915,264 × 8,915,264
4. Step 4: Simplify right side
   4,280,484x = 79,481,932,189,696
5. Step 5: Solve for x
   x = 79,481,932,189,696/4,280,484
6. Step 6: Final answer
   x = 18,568,445.11