Finding the Third Proportional to 142,356.50 and 214,466

Step by Step Solution

1. Step 1: Write the proportion equation
   142,356.50 : 214,466 = 214,466 : x
2. Step 2: Convert to fraction form
   142,356.50/214,466 = 214,466/x
3. Step 3: Cross multiply
   142,356.50x = 214,466 × 214,466
4. Step 4: Simplify right side
   142,356.50x = 45,995,665,156
5. Step 5: Solve for x
   x = 45,995,665,156/142,356.50
6. Step 6: Final answer
   x = 323,101.97