Finding the Third Proportional to 555,080 and 1,309,908

Step by Step Solution

1. Step 1: Write the proportion equation
   555,080 : 1,309,908 = 1,309,908 : x
2. Step 2: Convert to fraction form
   555,080/1,309,908 = 1,309,908/x
3. Step 3: Cross multiply
   555,080x = 1,309,908 × 1,309,908
4. Step 4: Simplify right side
   555,080x = 1,715,858,968,464
5. Step 5: Solve for x
   x = 1,715,858,968,464/555,080
6. Step 6: Final answer
   x = 3,091,192.20