Finding the Third Proportional to 680,424 and 1,479,072

Step by Step Solution

1. Step 1: Write the proportion equation
   680,424 : 1,479,072 = 1,479,072 : x
2. Step 2: Convert to fraction form
   680,424/1,479,072 = 1,479,072/x
3. Step 3: Cross multiply
   680,424x = 1,479,072 × 1,479,072
4. Step 4: Simplify right side
   680,424x = 2,187,653,981,184
5. Step 5: Solve for x
   x = 2,187,653,981,184/680,424
6. Step 6: Final answer
   x = 3,215,133.48