Finding the Third Proportional to 598,758 and 1,290,828

Step by Step Solution

1. Step 1: Write the proportion equation
   598,758 : 1,290,828 = 1,290,828 : x
2. Step 2: Convert to fraction form
   598,758/1,290,828 = 1,290,828/x
3. Step 3: Cross multiply
   598,758x = 1,290,828 × 1,290,828
4. Step 4: Simplify right side
   598,758x = 1,666,236,925,584
5. Step 5: Solve for x
   x = 1,666,236,925,584/598,758
6. Step 6: Final answer
   x = 2,782,821.98