Finding the Third Proportional to 136,732.50 and 209,886

Step by Step Solution

1. Step 1: Write the proportion equation
   136,732.50 : 209,886 = 209,886 : x
2. Step 2: Convert to fraction form
   136,732.50/209,886 = 209,886/x
3. Step 3: Cross multiply
   136,732.50x = 209,886 × 209,886
4. Step 4: Simplify right side
   136,732.50x = 44,052,132,996
5. Step 5: Solve for x
   x = 44,052,132,996/136,732.50
6. Step 6: Final answer
   x = 322,177.49