Finding the Third Proportional to 87,219 and 130,936.50

Step by Step Solution

1. Step 1: Write the proportion equation
   87,219 : 130,936.50 = 130,936.50 : x
2. Step 2: Convert to fraction form
   87,219/130,936.50 = 130,936.50/x
3. Step 3: Cross multiply
   87,219x = 130,936.50 × 130,936.50
4. Step 4: Simplify right side
   87,219x = 17,144,367,032.25
5. Step 5: Solve for x
   x = 17,144,367,032.25/87,219
6. Step 6: Final answer
   x = 196,566.88