Finding the Third Proportional to 142,404 and 307,650

Step by Step Solution

1. Step 1: Write the proportion equation
   142,404 : 307,650 = 307,650 : x
2. Step 2: Convert to fraction form
   142,404/307,650 = 307,650/x
3. Step 3: Cross multiply
   142,404x = 307,650 × 307,650
4. Step 4: Simplify right side
   142,404x = 94,648,522,500
5. Step 5: Solve for x
   x = 94,648,522,500/142,404
6. Step 6: Final answer
   x = 664,647.92