Finding the Third Proportional to 83,290.50 and 135,324

Step by Step Solution

1. Step 1: Write the proportion equation
   83,290.50 : 135,324 = 135,324 : x
2. Step 2: Convert to fraction form
   83,290.50/135,324 = 135,324/x
3. Step 3: Cross multiply
   83,290.50x = 135,324 × 135,324
4. Step 4: Simplify right side
   83,290.50x = 18,312,584,976
5. Step 5: Solve for x
   x = 18,312,584,976/83,290.50
6. Step 6: Final answer
   x = 219,864.03