Finding the Third Proportional to 38,636.16 and 81,491.06

Step by Step Solution

1. Step 1: Write the proportion equation
   38,636.16 : 81,491.06 = 81,491.06 : x
2. Step 2: Convert to fraction form
   38,636.16/81,491.06 = 81,491.06/x
3. Step 3: Cross multiply
   38,636.16x = 81,491.06 × 81,491.06
4. Step 4: Simplify right side
   38,636.16x = 6,640,793,267.38
5. Step 5: Solve for x
   x = 6,640,793,267.38/38,636.16
6. Step 6: Final answer
   x = 171,880.28