Finding the Third Proportional to 2,550,307 and 5,388,438

Step by Step Solution

1. Step 1: Write the proportion equation
   2,550,307 : 5,388,438 = 5,388,438 : x
2. Step 2: Convert to fraction form
   2,550,307/5,388,438 = 5,388,438/x
3. Step 3: Cross multiply
   2,550,307x = 5,388,438 × 5,388,438
4. Step 4: Simplify right side
   2,550,307x = 29,035,264,079,844
5. Step 5: Solve for x
   x = 29,035,264,079,844/2,550,307
6. Step 6: Final answer
   x = 11,385,007.40