Finding the Third Proportional to 88,690 and 133,030

Step by Step Solution

1. Step 1: Write the proportion equation
   88,690 : 133,030 = 133,030 : x
2. Step 2: Convert to fraction form
   88,690/133,030 = 133,030/x
3. Step 3: Cross multiply
   88,690x = 133,030 × 133,030
4. Step 4: Simplify right side
   88,690x = 17,696,980,900
5. Step 5: Solve for x
   x = 17,696,980,900/88,690
6. Step 6: Final answer
   x = 199,537.50