Finding the Third Proportional to 282,600 and 423,904.50

Step by Step Solution

1. Step 1: Write the proportion equation
   282,600 : 423,904.50 = 423,904.50 : x
2. Step 2: Convert to fraction form
   282,600/423,904.50 = 423,904.50/x
3. Step 3: Cross multiply
   282,600x = 423,904.50 × 423,904.50
4. Step 4: Simplify right side
   282,600x = 179,695,025,120.25
5. Step 5: Solve for x
   x = 179,695,025,120.25/282,600
6. Step 6: Final answer
   x = 635,863.50