Finding the Third Proportional to 335,721 and 725,061

Step by Step Solution

1. Step 1: Write the proportion equation
   335,721 : 725,061 = 725,061 : x
2. Step 2: Convert to fraction form
   335,721/725,061 = 725,061/x
3. Step 3: Cross multiply
   335,721x = 725,061 × 725,061
4. Step 4: Simplify right side
   335,721x = 525,713,453,721
5. Step 5: Solve for x
   x = 525,713,453,721/335,721
6. Step 6: Final answer
   x = 1,565,923.65