Finding the Third Proportional to 11,822,961 and 17,819,007

Step by Step Solution

1. Step 1: Write the proportion equation
   11,822,961 : 17,819,007 = 17,819,007 : x
2. Step 2: Convert to fraction form
   11,822,961/17,819,007 = 17,819,007/x
3. Step 3: Cross multiply
   11,822,961x = 17,819,007 × 17,819,007
4. Step 4: Simplify right side
   11,822,961x = 317,517,010,466,049
5. Step 5: Solve for x
   x = 317,517,010,466,049/11,822,961
6. Step 6: Final answer
   x = 26,855,963.62