Finding the Third Proportional to 1,013,720 and 1,417,239

Step by Step Solution

1. Step 1: Write the proportion equation
   1,013,720 : 1,417,239 = 1,417,239 : x
2. Step 2: Convert to fraction form
   1,013,720/1,417,239 = 1,417,239/x
3. Step 3: Cross multiply
   1,013,720x = 1,417,239 × 1,417,239
4. Step 4: Simplify right side
   1,013,720x = 2,008,566,383,121
5. Step 5: Solve for x
   x = 2,008,566,383,121/1,013,720
6. Step 6: Final answer
   x = 1,981,381.82