Finding the Third Proportional to 239,139 and 366,241.50

Step by Step Solution

1. Step 1: Write the proportion equation
   239,139 : 366,241.50 = 366,241.50 : x
2. Step 2: Convert to fraction form
   239,139/366,241.50 = 366,241.50/x
3. Step 3: Cross multiply
   239,139x = 366,241.50 × 366,241.50
4. Step 4: Simplify right side
   239,139x = 134,132,836,322.25
5. Step 5: Solve for x
   x = 134,132,836,322.25/239,139
6. Step 6: Final answer
   x = 560,899.04