Finding the Third Proportional to 162,289.50 and 350,499

Step by Step Solution

1. Step 1: Write the proportion equation
   162,289.50 : 350,499 = 350,499 : x
2. Step 2: Convert to fraction form
   162,289.50/350,499 = 350,499/x
3. Step 3: Cross multiply
   162,289.50x = 350,499 × 350,499
4. Step 4: Simplify right side
   162,289.50x = 122,849,549,001
5. Step 5: Solve for x
   x = 122,849,549,001/162,289.50
6. Step 6: Final answer
   x = 756,977.80