Finding the Third Proportional to 685,510 and 1,094,688

Step by Step Solution

1. Step 1: Write the proportion equation
   685,510 : 1,094,688 = 1,094,688 : x
2. Step 2: Convert to fraction form
   685,510/1,094,688 = 1,094,688/x
3. Step 3: Cross multiply
   685,510x = 1,094,688 × 1,094,688
4. Step 4: Simplify right side
   685,510x = 1,198,341,817,344
5. Step 5: Solve for x
   x = 1,198,341,817,344/685,510
6. Step 6: Final answer
   x = 1,748,102.61