Finding the Third Proportional to 152,401.50 and 319,747.50

Step by Step Solution

1. Step 1: Write the proportion equation
   152,401.50 : 319,747.50 = 319,747.50 : x
2. Step 2: Convert to fraction form
   152,401.50/319,747.50 = 319,747.50/x
3. Step 3: Cross multiply
   152,401.50x = 319,747.50 × 319,747.50
4. Step 4: Simplify right side
   152,401.50x = 102,238,463,756.25
5. Step 5: Solve for x
   x = 102,238,463,756.25/152,401.50
6. Step 6: Final answer
   x = 670,849.46