Finding the Third Proportional to 69,724.50 and 143,575.50

Step by Step Solution

1. Step 1: Write the proportion equation
   69,724.50 : 143,575.50 = 143,575.50 : x
2. Step 2: Convert to fraction form
   69,724.50/143,575.50 = 143,575.50/x
3. Step 3: Cross multiply
   69,724.50x = 143,575.50 × 143,575.50
4. Step 4: Simplify right side
   69,724.50x = 20,613,924,200.25
5. Step 5: Solve for x
   x = 20,613,924,200.25/69,724.50
6. Step 6: Final answer
   x = 295,648.22