Finding the Third Proportional to 743,400 and 1,629,072

Step by Step Solution

1. Step 1: Write the proportion equation
   743,400 : 1,629,072 = 1,629,072 : x
2. Step 2: Convert to fraction form
   743,400/1,629,072 = 1,629,072/x
3. Step 3: Cross multiply
   743,400x = 1,629,072 × 1,629,072
4. Step 4: Simplify right side
   743,400x = 2,653,875,581,184
5. Step 5: Solve for x
   x = 2,653,875,581,184/743,400
6. Step 6: Final answer
   x = 3,569,916.04