Finding the Third Proportional to 83,040 and 128,935.50

Step by Step Solution

1. Step 1: Write the proportion equation
   83,040 : 128,935.50 = 128,935.50 : x
2. Step 2: Convert to fraction form
   83,040/128,935.50 = 128,935.50/x
3. Step 3: Cross multiply
   83,040x = 128,935.50 × 128,935.50
4. Step 4: Simplify right side
   83,040x = 16,624,363,160.25
5. Step 5: Solve for x
   x = 16,624,363,160.25/83,040
6. Step 6: Final answer
   x = 200,197.05