Finding the Third Proportional to 72,617 and 116,987

Step by Step Solution

1. Step 1: Write the proportion equation
   72,617 : 116,987 = 116,987 : x
2. Step 2: Convert to fraction form
   72,617/116,987 = 116,987/x
3. Step 3: Cross multiply
   72,617x = 116,987 × 116,987
4. Step 4: Simplify right side
   72,617x = 13,685,958,169
5. Step 5: Solve for x
   x = 13,685,958,169/72,617
6. Step 6: Final answer
   x = 188,467.69