Finding the Third Proportional to 2,478,909 and 5,255,466

Step by Step Solution

1. Step 1: Write the proportion equation
   2,478,909 : 5,255,466 = 5,255,466 : x
2. Step 2: Convert to fraction form
   2,478,909/5,255,466 = 5,255,466/x
3. Step 3: Cross multiply
   2,478,909x = 5,255,466 × 5,255,466
4. Step 4: Simplify right side
   2,478,909x = 27,619,922,877,156
5. Step 5: Solve for x
   x = 27,619,922,877,156/2,478,909
6. Step 6: Final answer
   x = 11,141,967.24