Finding the Third Proportional to 657,864 and 1,417,240

Step by Step Solution

1. Step 1: Write the proportion equation
   657,864 : 1,417,240 = 1,417,240 : x
2. Step 2: Convert to fraction form
   657,864/1,417,240 = 1,417,240/x
3. Step 3: Cross multiply
   657,864x = 1,417,240 × 1,417,240
4. Step 4: Simplify right side
   657,864x = 2,008,569,217,600
5. Step 5: Solve for x
   x = 2,008,569,217,600/657,864
6. Step 6: Final answer
   x = 3,053,167.85