Finding the Third Proportional to 142,324 and 309,704

Step by Step Solution

1. Step 1: Write the proportion equation
   142,324 : 309,704 = 309,704 : x
2. Step 2: Convert to fraction form
   142,324/309,704 = 309,704/x
3. Step 3: Cross multiply
   142,324x = 309,704 × 309,704
4. Step 4: Simplify right side
   142,324x = 95,916,567,616
5. Step 5: Solve for x
   x = 95,916,567,616/142,324
6. Step 6: Final answer
   x = 673,931.08