Finding the Third Proportional to 696,640 and 1,042,260

Step by Step Solution

1. Step 1: Write the proportion equation
   696,640 : 1,042,260 = 1,042,260 : x
2. Step 2: Convert to fraction form
   696,640/1,042,260 = 1,042,260/x
3. Step 3: Cross multiply
   696,640x = 1,042,260 × 1,042,260
4. Step 4: Simplify right side
   696,640x = 1,086,305,907,600
5. Step 5: Solve for x
   x = 1,086,305,907,600/696,640
6. Step 6: Final answer
   x = 1,559,350.46