Finding the Third Proportional to 1,223,682 and 1,720,143

Step by Step Solution

1. Step 1: Write the proportion equation
   1,223,682 : 1,720,143 = 1,720,143 : x
2. Step 2: Convert to fraction form
   1,223,682/1,720,143 = 1,720,143/x
3. Step 3: Cross multiply
   1,223,682x = 1,720,143 × 1,720,143
4. Step 4: Simplify right side
   1,223,682x = 2,958,891,940,449
5. Step 5: Solve for x
   x = 2,958,891,940,449/1,223,682
6. Step 6: Final answer
   x = 2,418,023.59