Finding the Third Proportional to 581,288 and 788,988

Step by Step Solution

1. Step 1: Write the proportion equation
   581,288 : 788,988 = 788,988 : x
2. Step 2: Convert to fraction form
   581,288/788,988 = 788,988/x
3. Step 3: Cross multiply
   581,288x = 788,988 × 788,988
4. Step 4: Simplify right side
   581,288x = 622,502,064,144
5. Step 5: Solve for x
   x = 622,502,064,144/581,288
6. Step 6: Final answer
   x = 1,070,901.28