Finding the Third Proportional to 132,372 and 288,040

Step by Step Solution

1. Step 1: Write the proportion equation
   132,372 : 288,040 = 288,040 : x
2. Step 2: Convert to fraction form
   132,372/288,040 = 288,040/x
3. Step 3: Cross multiply
   132,372x = 288,040 × 288,040
4. Step 4: Simplify right side
   132,372x = 82,967,041,600
5. Step 5: Solve for x
   x = 82,967,041,600/132,372
6. Step 6: Final answer
   x = 626,771.84