Finding the Third Proportional to 83,200.50 and 129,076.50

Step by Step Solution

1. Step 1: Write the proportion equation
   83,200.50 : 129,076.50 = 129,076.50 : x
2. Step 2: Convert to fraction form
   83,200.50/129,076.50 = 129,076.50/x
3. Step 3: Cross multiply
   83,200.50x = 129,076.50 × 129,076.50
4. Step 4: Simplify right side
   83,200.50x = 16,660,742,852.25
5. Step 5: Solve for x
   x = 16,660,742,852.25/83,200.50
6. Step 6: Final answer
   x = 200,248.11