Finding the Third Proportional to 698,790 and 1,054,830

Step by Step Solution

1. Step 1: Write the proportion equation
   698,790 : 1,054,830 = 1,054,830 : x
2. Step 2: Convert to fraction form
   698,790/1,054,830 = 1,054,830/x
3. Step 3: Cross multiply
   698,790x = 1,054,830 × 1,054,830
4. Step 4: Simplify right side
   698,790x = 1,112,666,328,900
5. Step 5: Solve for x
   x = 1,112,666,328,900/698,790
6. Step 6: Final answer
   x = 1,592,275.69