Finding the Third Proportional to 86,864.50 and 130,505.50

Step by Step Solution

1. Step 1: Write the proportion equation
   86,864.50 : 130,505.50 = 130,505.50 : x
2. Step 2: Convert to fraction form
   86,864.50/130,505.50 = 130,505.50/x
3. Step 3: Cross multiply
   86,864.50x = 130,505.50 × 130,505.50
4. Step 4: Simplify right side
   86,864.50x = 17,031,685,530.25
5. Step 5: Solve for x
   x = 17,031,685,530.25/86,864.50
6. Step 6: Final answer
   x = 196,071.88