Finding the Third Proportional to 1,223,892 and 1,720,464

Step by Step Solution

1. Step 1: Write the proportion equation
   1,223,892 : 1,720,464 = 1,720,464 : x
2. Step 2: Convert to fraction form
   1,223,892/1,720,464 = 1,720,464/x
3. Step 3: Cross multiply
   1,223,892x = 1,720,464 × 1,720,464
4. Step 4: Simplify right side
   1,223,892x = 2,959,996,375,296
5. Step 5: Solve for x
   x = 2,959,996,375,296/1,223,892
6. Step 6: Final answer
   x = 2,418,511.09