Finding the Third Proportional to 83,236.50 and 128,074.50

Step by Step Solution

1. Step 1: Write the proportion equation
   83,236.50 : 128,074.50 = 128,074.50 : x
2. Step 2: Convert to fraction form
   83,236.50/128,074.50 = 128,074.50/x
3. Step 3: Cross multiply
   83,236.50x = 128,074.50 × 128,074.50
4. Step 4: Simplify right side
   83,236.50x = 16,403,077,550.25
5. Step 5: Solve for x
   x = 16,403,077,550.25/83,236.50
6. Step 6: Final answer
   x = 197,065.92