Finding the Third Proportional to 152,131.50 and 324,625

Step by Step Solution

1. Step 1: Write the proportion equation
   152,131.50 : 324,625 = 324,625 : x
2. Step 2: Convert to fraction form
   152,131.50/324,625 = 324,625/x
3. Step 3: Cross multiply
   152,131.50x = 324,625 × 324,625
4. Step 4: Simplify right side
   152,131.50x = 105,381,390,625
5. Step 5: Solve for x
   x = 105,381,390,625/152,131.50
6. Step 6: Final answer
   x = 692,699.35