Finding the Third Proportional to 432,728 and 1,123,341

Step by Step Solution

1. Step 1: Write the proportion equation
   432,728 : 1,123,341 = 1,123,341 : x
2. Step 2: Convert to fraction form
   432,728/1,123,341 = 1,123,341/x
3. Step 3: Cross multiply
   432,728x = 1,123,341 × 1,123,341
4. Step 4: Simplify right side
   432,728x = 1,261,895,002,281
5. Step 5: Solve for x
   x = 1,261,895,002,281/432,728
6. Step 6: Final answer
   x = 2,916,139.01