Finding the Third Proportional to 721,055 and 1,131,080

Step by Step Solution

1. Step 1: Write the proportion equation
   721,055 : 1,131,080 = 1,131,080 : x
2. Step 2: Convert to fraction form
   721,055/1,131,080 = 1,131,080/x
3. Step 3: Cross multiply
   721,055x = 1,131,080 × 1,131,080
4. Step 4: Simplify right side
   721,055x = 1,279,341,966,400
5. Step 5: Solve for x
   x = 1,279,341,966,400/721,055
6. Step 6: Final answer
   x = 1,774,264.05