Finding the Third Proportional to 4,391,955 and 9,517,010

Step by Step Solution

1. Step 1: Write the proportion equation
   4,391,955 : 9,517,010 = 9,517,010 : x
2. Step 2: Convert to fraction form
   4,391,955/9,517,010 = 9,517,010/x
3. Step 3: Cross multiply
   4,391,955x = 9,517,010 × 9,517,010
4. Step 4: Simplify right side
   4,391,955x = 90,573,479,340,100
5. Step 5: Solve for x
   x = 90,573,479,340,100/4,391,955
6. Step 6: Final answer
   x = 20,622,588.20