Finding the Third Proportional to 87,321 and 133,488

Step by Step Solution

1. Step 1: Write the proportion equation
   87,321 : 133,488 = 133,488 : x
2. Step 2: Convert to fraction form
   87,321/133,488 = 133,488/x
3. Step 3: Cross multiply
   87,321x = 133,488 × 133,488
4. Step 4: Simplify right side
   87,321x = 17,819,046,144
5. Step 5: Solve for x
   x = 17,819,046,144/87,321
6. Step 6: Final answer
   x = 204,063.70