Finding the Third Proportional to 132,233.50 and 290,708

Step by Step Solution

1. Step 1: Write the proportion equation
   132,233.50 : 290,708 = 290,708 : x
2. Step 2: Convert to fraction form
   132,233.50/290,708 = 290,708/x
3. Step 3: Cross multiply
   132,233.50x = 290,708 × 290,708
4. Step 4: Simplify right side
   132,233.50x = 84,511,141,264
5. Step 5: Solve for x
   x = 84,511,141,264/132,233.50
6. Step 6: Final answer
   x = 639,105.38