Finding the Third Proportional to 282,721.50 and 415,602

Step by Step Solution

1. Step 1: Write the proportion equation
   282,721.50 : 415,602 = 415,602 : x
2. Step 2: Convert to fraction form
   282,721.50/415,602 = 415,602/x
3. Step 3: Cross multiply
   282,721.50x = 415,602 × 415,602
4. Step 4: Simplify right side
   282,721.50x = 172,725,022,404
5. Step 5: Solve for x
   x = 172,725,022,404/282,721.50
6. Step 6: Final answer
   x = 610,936.99