Finding the Third Proportional to 186,952.50 and 405,450

Step by Step Solution

1. Step 1: Write the proportion equation
   186,952.50 : 405,450 = 405,450 : x
2. Step 2: Convert to fraction form
   186,952.50/405,450 = 405,450/x
3. Step 3: Cross multiply
   186,952.50x = 405,450 × 405,450
4. Step 4: Simplify right side
   186,952.50x = 164,389,702,500
5. Step 5: Solve for x
   x = 164,389,702,500/186,952.50
6. Step 6: Final answer
   x = 879,312.67