Finding the Third Proportional to 555,114 and 1,309,989

Step by Step Solution

1. Step 1: Write the proportion equation
   555,114 : 1,309,989 = 1,309,989 : x
2. Step 2: Convert to fraction form
   555,114/1,309,989 = 1,309,989/x
3. Step 3: Cross multiply
   555,114x = 1,309,989 × 1,309,989
4. Step 4: Simplify right side
   555,114x = 1,716,071,180,121
5. Step 5: Solve for x
   x = 1,716,071,180,121/555,114
6. Step 6: Final answer
   x = 3,091,385.16