Finding the Third Proportional to 3,558,888 and 5,515,296

Step by Step Solution

1. Step 1: Write the proportion equation
   3,558,888 : 5,515,296 = 5,515,296 : x
2. Step 2: Convert to fraction form
   3,558,888/5,515,296 = 5,515,296/x
3. Step 3: Cross multiply
   3,558,888x = 5,515,296 × 5,515,296
4. Step 4: Simplify right side
   3,558,888x = 30,418,489,967,616
5. Step 5: Solve for x
   x = 30,418,489,967,616/3,558,888
6. Step 6: Final answer
   x = 8,547,189.45