Finding the Third Proportional to 734,439 and 1,123,392

Step by Step Solution

1. Step 1: Write the proportion equation
   734,439 : 1,123,392 = 1,123,392 : x
2. Step 2: Convert to fraction form
   734,439/1,123,392 = 1,123,392/x
3. Step 3: Cross multiply
   734,439x = 1,123,392 × 1,123,392
4. Step 4: Simplify right side
   734,439x = 1,262,009,585,664
5. Step 5: Solve for x
   x = 1,262,009,585,664/734,439
6. Step 6: Final answer
   x = 1,718,331.39