Finding the Third Proportional to 136,005 and 211,111.50

Step by Step Solution

1. Step 1: Write the proportion equation
   136,005 : 211,111.50 = 211,111.50 : x
2. Step 2: Convert to fraction form
   136,005/211,111.50 = 211,111.50/x
3. Step 3: Cross multiply
   136,005x = 211,111.50 × 211,111.50
4. Step 4: Simplify right side
   136,005x = 44,568,065,432.25
5. Step 5: Solve for x
   x = 44,568,065,432.25/136,005
6. Step 6: Final answer
   x = 327,694.32