Finding the Third Proportional to 4,180,972 and 9,159,116

Step by Step Solution

1. Step 1: Write the proportion equation
   4,180,972 : 9,159,116 = 9,159,116 : x
2. Step 2: Convert to fraction form
   4,180,972/9,159,116 = 9,159,116/x
3. Step 3: Cross multiply
   4,180,972x = 9,159,116 × 9,159,116
4. Step 4: Simplify right side
   4,180,972x = 83,889,405,901,456
5. Step 5: Solve for x
   x = 83,889,405,901,456/4,180,972
6. Step 6: Final answer
   x = 20,064,570.13