Finding the Third Proportional to 703,608 and 1,090,164

Step by Step Solution

1. Step 1: Write the proportion equation
   703,608 : 1,090,164 = 1,090,164 : x
2. Step 2: Convert to fraction form
   703,608/1,090,164 = 1,090,164/x
3. Step 3: Cross multiply
   703,608x = 1,090,164 × 1,090,164
4. Step 4: Simplify right side
   703,608x = 1,188,457,546,896
5. Step 5: Solve for x
   x = 1,188,457,546,896/703,608
6. Step 6: Final answer
   x = 1,689,090.44