Finding the Third Proportional to 155,973 and 319,320.75

Step by Step Solution

1. Step 1: Write the proportion equation
   155,973 : 319,320.75 = 319,320.75 : x
2. Step 2: Convert to fraction form
   155,973/319,320.75 = 319,320.75/x
3. Step 3: Cross multiply
   155,973x = 319,320.75 × 319,320.75
4. Step 4: Simplify right side
   155,973x = 101,965,741,380.56
5. Step 5: Solve for x
   x = 101,965,741,380.56/155,973
6. Step 6: Final answer
   x = 653,739.69