Finding the Third Proportional to 108,284.50 and 262,405.50

Step by Step Solution

1. Step 1: Write the proportion equation
   108,284.50 : 262,405.50 = 262,405.50 : x
2. Step 2: Convert to fraction form
   108,284.50/262,405.50 = 262,405.50/x
3. Step 3: Cross multiply
   108,284.50x = 262,405.50 × 262,405.50
4. Step 4: Simplify right side
   108,284.50x = 68,856,646,430.25
5. Step 5: Solve for x
   x = 68,856,646,430.25/108,284.50
6. Step 6: Final answer
   x = 635,886.45