Finding the Third Proportional to 108,425.50 and 260,885.50

Step by Step Solution

1. Step 1: Write the proportion equation
   108,425.50 : 260,885.50 = 260,885.50 : x
2. Step 2: Convert to fraction form
   108,425.50/260,885.50 = 260,885.50/x
3. Step 3: Cross multiply
   108,425.50x = 260,885.50 × 260,885.50
4. Step 4: Simplify right side
   108,425.50x = 68,061,244,110.25
5. Step 5: Solve for x
   x = 68,061,244,110.25/108,425.50
6. Step 6: Final answer
   x = 627,723.59