Finding the Third Proportional to 164,509.31 and 353,500.88

Step by Step Solution

1. Step 1: Write the proportion equation
   164,509.31 : 353,500.88 = 353,500.88 : x
2. Step 2: Convert to fraction form
   164,509.31/353,500.88 = 353,500.88/x
3. Step 3: Cross multiply
   164,509.31x = 353,500.88 × 353,500.88
4. Step 4: Simplify right side
   164,509.31x = 124,962,868,625.77
5. Step 5: Solve for x
   x = 124,962,868,625.77/164,509.31
6. Step 6: Final answer
   x = 759,609.69