Finding the Third Proportional to 187,786.50 and 405,063

Step by Step Solution

1. Step 1: Write the proportion equation
   187,786.50 : 405,063 = 405,063 : x
2. Step 2: Convert to fraction form
   187,786.50/405,063 = 405,063/x
3. Step 3: Cross multiply
   187,786.50x = 405,063 × 405,063
4. Step 4: Simplify right side
   187,786.50x = 164,076,033,969
5. Step 5: Solve for x
   x = 164,076,033,969/187,786.50
6. Step 6: Final answer
   x = 873,737.11