Finding the Third Proportional to 2,112,810 and 4,554,138

Step by Step Solution

1. Step 1: Write the proportion equation
   2,112,810 : 4,554,138 = 4,554,138 : x
2. Step 2: Convert to fraction form
   2,112,810/4,554,138 = 4,554,138/x
3. Step 3: Cross multiply
   2,112,810x = 4,554,138 × 4,554,138
4. Step 4: Simplify right side
   2,112,810x = 20,740,172,923,044
5. Step 5: Solve for x
   x = 20,740,172,923,044/2,112,810
6. Step 6: Final answer
   x = 9,816,392.82