Finding the Third Proportional to 261,971 and 572,978

Step by Step Solution

1. Step 1: Write the proportion equation
   261,971 : 572,978 = 572,978 : x
2. Step 2: Convert to fraction form
   261,971/572,978 = 572,978/x
3. Step 3: Cross multiply
   261,971x = 572,978 × 572,978
4. Step 4: Simplify right side
   261,971x = 328,303,788,484
5. Step 5: Solve for x
   x = 328,303,788,484/261,971
6. Step 6: Final answer
   x = 1,253,206.61