Finding the Third Proportional to 71,172 and 103,085

Step by Step Solution

1. Step 1: Write the proportion equation
   71,172 : 103,085 = 103,085 : x
2. Step 2: Convert to fraction form
   71,172/103,085 = 103,085/x
3. Step 3: Cross multiply
   71,172x = 103,085 × 103,085
4. Step 4: Simplify right side
   71,172x = 10,626,517,225
5. Step 5: Solve for x
   x = 10,626,517,225/71,172
6. Step 6: Final answer
   x = 149,307.55