Finding the Third Proportional to 39,867.19 and 81,577.13

Step by Step Solution

1. Step 1: Write the proportion equation
   39,867.19 : 81,577.13 = 81,577.13 : x
2. Step 2: Convert to fraction form
   39,867.19/81,577.13 = 81,577.13/x
3. Step 3: Cross multiply
   39,867.19x = 81,577.13 × 81,577.13
4. Step 4: Simplify right side
   39,867.19x = 6,654,827,323.27
5. Step 5: Solve for x
   x = 6,654,827,323.27/39,867.19
6. Step 6: Final answer
   x = 166,924.93