Finding the Third Proportional to 718,472 and 1,123,788

Step by Step Solution

1. Step 1: Write the proportion equation
   718,472 : 1,123,788 = 1,123,788 : x
2. Step 2: Convert to fraction form
   718,472/1,123,788 = 1,123,788/x
3. Step 3: Cross multiply
   718,472x = 1,123,788 × 1,123,788
4. Step 4: Simplify right side
   718,472x = 1,262,899,468,944
5. Step 5: Solve for x
   x = 1,262,899,468,944/718,472
6. Step 6: Final answer
   x = 1,757,757.39