Finding the Third Proportional to 585,978 and 1,254,900

Step by Step Solution

1. Step 1: Write the proportion equation
   585,978 : 1,254,900 = 1,254,900 : x
2. Step 2: Convert to fraction form
   585,978/1,254,900 = 1,254,900/x
3. Step 3: Cross multiply
   585,978x = 1,254,900 × 1,254,900
4. Step 4: Simplify right side
   585,978x = 1,574,774,010,000
5. Step 5: Solve for x
   x = 1,574,774,010,000/585,978
6. Step 6: Final answer
   x = 2,687,428.56