Finding the Third Proportional to 152,130.50 and 324,623

Step by Step Solution

1. Step 1: Write the proportion equation
   152,130.50 : 324,623 = 324,623 : x
2. Step 2: Convert to fraction form
   152,130.50/324,623 = 324,623/x
3. Step 3: Cross multiply
   152,130.50x = 324,623 × 324,623
4. Step 4: Simplify right side
   152,130.50x = 105,380,092,129
5. Step 5: Solve for x
   x = 105,380,092,129/152,130.50
6. Step 6: Final answer
   x = 692,695.36