Finding the Third Proportional to 69,099.75 and 140,567.06

Step by Step Solution

1. Step 1: Write the proportion equation
   69,099.75 : 140,567.06 = 140,567.06 : x
2. Step 2: Convert to fraction form
   69,099.75/140,567.06 = 140,567.06/x
3. Step 3: Cross multiply
   69,099.75x = 140,567.06 × 140,567.06
4. Step 4: Simplify right side
   69,099.75x = 19,759,099,059.88
5. Step 5: Solve for x
   x = 19,759,099,059.88/69,099.75
6. Step 6: Final answer
   x = 285,950.37