Finding the Third Proportional to 2,531,480 and 5,458,778

Step by Step Solution

1. Step 1: Write the proportion equation
   2,531,480 : 5,458,778 = 5,458,778 : x
2. Step 2: Convert to fraction form
   2,531,480/5,458,778 = 5,458,778/x
3. Step 3: Cross multiply
   2,531,480x = 5,458,778 × 5,458,778
4. Step 4: Simplify right side
   2,531,480x = 29,798,257,253,284
5. Step 5: Solve for x
   x = 29,798,257,253,284/2,531,480
6. Step 6: Final answer
   x = 11,771,081.44