Finding the Third Proportional to 345,195 and 753,144.75

Step by Step Solution

1. Step 1: Write the proportion equation
   345,195 : 753,144.75 = 753,144.75 : x
2. Step 2: Convert to fraction form
   345,195/753,144.75 = 753,144.75/x
3. Step 3: Cross multiply
   345,195x = 753,144.75 × 753,144.75
4. Step 4: Simplify right side
   345,195x = 567,227,014,452.56
5. Step 5: Solve for x
   x = 567,227,014,452.56/345,195
6. Step 6: Final answer
   x = 1,643,207.50