Finding the Third Proportional to 87,699 and 132,136.50

Step by Step Solution

1. Step 1: Write the proportion equation
   87,699 : 132,136.50 = 132,136.50 : x
2. Step 2: Convert to fraction form
   87,699/132,136.50 = 132,136.50/x
3. Step 3: Cross multiply
   87,699x = 132,136.50 × 132,136.50
4. Step 4: Simplify right side
   87,699x = 17,460,054,632.25
5. Step 5: Solve for x
   x = 17,460,054,632.25/87,699
6. Step 6: Final answer
   x = 199,090.69