Finding the Third Proportional to 616,908 and 1,428,030

Step by Step Solution

1. Step 1: Write the proportion equation
   616,908 : 1,428,030 = 1,428,030 : x
2. Step 2: Convert to fraction form
   616,908/1,428,030 = 1,428,030/x
3. Step 3: Cross multiply
   616,908x = 1,428,030 × 1,428,030
4. Step 4: Simplify right side
   616,908x = 2,039,269,680,900
5. Step 5: Solve for x
   x = 2,039,269,680,900/616,908
6. Step 6: Final answer
   x = 3,305,630.14