Finding the Third Proportional to 187,168.50 and 405,864

Step by Step Solution

1. Step 1: Write the proportion equation
   187,168.50 : 405,864 = 405,864 : x
2. Step 2: Convert to fraction form
   187,168.50/405,864 = 405,864/x
3. Step 3: Cross multiply
   187,168.50x = 405,864 × 405,864
4. Step 4: Simplify right side
   187,168.50x = 164,725,586,496
5. Step 5: Solve for x
   x = 164,725,586,496/187,168.50
6. Step 6: Final answer
   x = 880,092.46