Finding the Third Proportional to 142,882 and 307,269

Step by Step Solution

1. Step 1: Write the proportion equation
   142,882 : 307,269 = 307,269 : x
2. Step 2: Convert to fraction form
   142,882/307,269 = 307,269/x
3. Step 3: Cross multiply
   142,882x = 307,269 × 307,269
4. Step 4: Simplify right side
   142,882x = 94,414,238,361
5. Step 5: Solve for x
   x = 94,414,238,361/142,882
6. Step 6: Final answer
   x = 660,784.69