Finding the Third Proportional to 87,321 and 133,488.50

Step by Step Solution

1. Step 1: Write the proportion equation
   87,321 : 133,488.50 = 133,488.50 : x
2. Step 2: Convert to fraction form
   87,321/133,488.50 = 133,488.50/x
3. Step 3: Cross multiply
   87,321x = 133,488.50 × 133,488.50
4. Step 4: Simplify right side
   87,321x = 17,819,179,632.25
5. Step 5: Solve for x
   x = 17,819,179,632.25/87,321
6. Step 6: Final answer
   x = 204,065.23