Finding the Third Proportional to 142,435 and 307,010

Step by Step Solution

1. Step 1: Write the proportion equation
   142,435 : 307,010 = 307,010 : x
2. Step 2: Convert to fraction form
   142,435/307,010 = 307,010/x
3. Step 3: Cross multiply
   142,435x = 307,010 × 307,010
4. Step 4: Simplify right side
   142,435x = 94,255,140,100
5. Step 5: Solve for x
   x = 94,255,140,100/142,435
6. Step 6: Final answer
   x = 661,741.43