Finding the Third Proportional to 356,919.75 and 525,510

Step by Step Solution

1. Step 1: Write the proportion equation
   356,919.75 : 525,510 = 525,510 : x
2. Step 2: Convert to fraction form
   356,919.75/525,510 = 525,510/x
3. Step 3: Cross multiply
   356,919.75x = 525,510 × 525,510
4. Step 4: Simplify right side
   356,919.75x = 276,160,760,100
5. Step 5: Solve for x
   x = 276,160,760,100/356,919.75
6. Step 6: Final answer
   x = 773,733.48