Finding the Third Proportional to 39,409.03 and 81,622.69

Step by Step Solution

1. Step 1: Write the proportion equation
   39,409.03 : 81,622.69 = 81,622.69 : x
2. Step 2: Convert to fraction form
   39,409.03/81,622.69 = 81,622.69/x
3. Step 3: Cross multiply
   39,409.03x = 81,622.69 × 81,622.69
4. Step 4: Simplify right side
   39,409.03x = 6,662,263,114.72
5. Step 5: Solve for x
   x = 6,662,263,114.72/39,409.03
6. Step 6: Final answer
   x = 169,054.22