Finding the Third Proportional to 281,827.50 and 436,890

Step by Step Solution

1. Step 1: Write the proportion equation
   281,827.50 : 436,890 = 436,890 : x
2. Step 2: Convert to fraction form
   281,827.50/436,890 = 436,890/x
3. Step 3: Cross multiply
   281,827.50x = 436,890 × 436,890
4. Step 4: Simplify right side
   281,827.50x = 190,872,872,100
5. Step 5: Solve for x
   x = 190,872,872,100/281,827.50
6. Step 6: Final answer
   x = 677,268.44