Finding the Third Proportional to 725,608 and 1,091,200

Step by Step Solution

1. Step 1: Write the proportion equation
   725,608 : 1,091,200 = 1,091,200 : x
2. Step 2: Convert to fraction form
   725,608/1,091,200 = 1,091,200/x
3. Step 3: Cross multiply
   725,608x = 1,091,200 × 1,091,200
4. Step 4: Simplify right side
   725,608x = 1,190,717,440,000
5. Step 5: Solve for x
   x = 1,190,717,440,000/725,608
6. Step 6: Final answer
   x = 1,640,992.71