Finding the Third Proportional to 83,130 and 128,983.50

Step by Step Solution

1. Step 1: Write the proportion equation
   83,130 : 128,983.50 = 128,983.50 : x
2. Step 2: Convert to fraction form
   83,130/128,983.50 = 128,983.50/x
3. Step 3: Cross multiply
   83,130x = 128,983.50 × 128,983.50
4. Step 4: Simplify right side
   83,130x = 16,636,743,272.25
5. Step 5: Solve for x
   x = 16,636,743,272.25/83,130
6. Step 6: Final answer
   x = 200,129.23