Finding the Third Proportional to 146,713.78 and 321,480.56

Step by Step Solution

1. Step 1: Write the proportion equation
   146,713.78 : 321,480.56 = 321,480.56 : x
2. Step 2: Convert to fraction form
   146,713.78/321,480.56 = 321,480.56/x
3. Step 3: Cross multiply
   146,713.78x = 321,480.56 × 321,480.56
4. Step 4: Simplify right side
   146,713.78x = 103,349,752,065.32
5. Step 5: Solve for x
   x = 103,349,752,065.32/146,713.78
6. Step 6: Final answer
   x = 704,431.11