Finding the Third Proportional to 142,442 and 307,726

Step by Step Solution

1. Step 1: Write the proportion equation
   142,442 : 307,726 = 307,726 : x
2. Step 2: Convert to fraction form
   142,442/307,726 = 307,726/x
3. Step 3: Cross multiply
   142,442x = 307,726 × 307,726
4. Step 4: Simplify right side
   142,442x = 94,695,291,076
5. Step 5: Solve for x
   x = 94,695,291,076/142,442
6. Step 6: Final answer
   x = 664,798.94