Finding the Third Proportional to 517,866 and 794,910

Step by Step Solution

1. Step 1: Write the proportion equation
   517,866 : 794,910 = 794,910 : x
2. Step 2: Convert to fraction form
   517,866/794,910 = 794,910/x
3. Step 3: Cross multiply
   517,866x = 794,910 × 794,910
4. Step 4: Simplify right side
   517,866x = 631,881,908,100
5. Step 5: Solve for x
   x = 631,881,908,100/517,866
6. Step 6: Final answer
   x = 1,220,164.88