Finding the Third Proportional to 145,381.50 and 308,370

Step by Step Solution

1. Step 1: Write the proportion equation
   145,381.50 : 308,370 = 308,370 : x
2. Step 2: Convert to fraction form
   145,381.50/308,370 = 308,370/x
3. Step 3: Cross multiply
   145,381.50x = 308,370 × 308,370
4. Step 4: Simplify right side
   145,381.50x = 95,092,056,900
5. Step 5: Solve for x
   x = 95,092,056,900/145,381.50
6. Step 6: Final answer
   x = 654,086.37