Finding the Third Proportional to 142,880.50 and 307,267

Step by Step Solution

1. Step 1: Write the proportion equation
   142,880.50 : 307,267 = 307,267 : x
2. Step 2: Convert to fraction form
   142,880.50/307,267 = 307,267/x
3. Step 3: Cross multiply
   142,880.50x = 307,267 × 307,267
4. Step 4: Simplify right side
   142,880.50x = 94,413,009,289
5. Step 5: Solve for x
   x = 94,413,009,289/142,880.50
6. Step 6: Final answer
   x = 660,783.03