Finding the Third Proportional to 142,197 and 301,890

Step by Step Solution

1. Step 1: Write the proportion equation
   142,197 : 301,890 = 301,890 : x
2. Step 2: Convert to fraction form
   142,197/301,890 = 301,890/x
3. Step 3: Cross multiply
   142,197x = 301,890 × 301,890
4. Step 4: Simplify right side
   142,197x = 91,137,572,100
5. Step 5: Solve for x
   x = 91,137,572,100/142,197
6. Step 6: Final answer
   x = 640,924.72