Finding the Third Proportional to 757,342 and 1,621,072

Step by Step Solution

1. Step 1: Write the proportion equation
   757,342 : 1,621,072 = 1,621,072 : x
2. Step 2: Convert to fraction form
   757,342/1,621,072 = 1,621,072/x
3. Step 3: Cross multiply
   757,342x = 1,621,072 × 1,621,072
4. Step 4: Simplify right side
   757,342x = 2,627,874,429,184
5. Step 5: Solve for x
   x = 2,627,874,429,184/757,342
6. Step 6: Final answer
   x = 3,469,864.91