Finding the Third Proportional to 142,598 and 309,832

Step by Step Solution

1. Step 1: Write the proportion equation
   142,598 : 309,832 = 309,832 : x
2. Step 2: Convert to fraction form
   142,598/309,832 = 309,832/x
3. Step 3: Cross multiply
   142,598x = 309,832 × 309,832
4. Step 4: Simplify right side
   142,598x = 95,995,868,224
5. Step 5: Solve for x
   x = 95,995,868,224/142,598
6. Step 6: Final answer
   x = 673,192.25