Finding the Third Proportional to 904,215 and 1,231,386

Step by Step Solution

1. Step 1: Write the proportion equation
   904,215 : 1,231,386 = 1,231,386 : x
2. Step 2: Convert to fraction form
   904,215/1,231,386 = 1,231,386/x
3. Step 3: Cross multiply
   904,215x = 1,231,386 × 1,231,386
4. Step 4: Simplify right side
   904,215x = 1,516,311,480,996
5. Step 5: Solve for x
   x = 1,516,311,480,996/904,215
6. Step 6: Final answer
   x = 1,676,936.88