Finding the Third Proportional to 142,076 and 328,055

Step by Step Solution

1. Step 1: Write the proportion equation
   142,076 : 328,055 = 328,055 : x
2. Step 2: Convert to fraction form
   142,076/328,055 = 328,055/x
3. Step 3: Cross multiply
   142,076x = 328,055 × 328,055
4. Step 4: Simplify right side
   142,076x = 107,620,083,025
5. Step 5: Solve for x
   x = 107,620,083,025/142,076
6. Step 6: Final answer
   x = 757,482.50