Finding the Third Proportional to 85,982.50 and 130,816.50

Step by Step Solution

1. Step 1: Write the proportion equation
   85,982.50 : 130,816.50 = 130,816.50 : x
2. Step 2: Convert to fraction form
   85,982.50/130,816.50 = 130,816.50/x
3. Step 3: Cross multiply
   85,982.50x = 130,816.50 × 130,816.50
4. Step 4: Simplify right side
   85,982.50x = 17,112,956,672.25
5. Step 5: Solve for x
   x = 17,112,956,672.25/85,982.50
6. Step 6: Final answer
   x = 199,028.37