Finding the Third Proportional to 83,144 and 129,004.50

Step by Step Solution

1. Step 1: Write the proportion equation
   83,144 : 129,004.50 = 129,004.50 : x
2. Step 2: Convert to fraction form
   83,144/129,004.50 = 129,004.50/x
3. Step 3: Cross multiply
   83,144x = 129,004.50 × 129,004.50
4. Step 4: Simplify right side
   83,144x = 16,642,161,020.25
5. Step 5: Solve for x
   x = 16,642,161,020.25/83,144
6. Step 6: Final answer
   x = 200,160.70