Finding the Third Proportional to 27,581.63 and 42,620.25

Step by Step Solution

1. Step 1: Write the proportion equation
   27,581.63 : 42,620.25 = 42,620.25 : x
2. Step 2: Convert to fraction form
   27,581.63/42,620.25 = 42,620.25/x
3. Step 3: Cross multiply
   27,581.63x = 42,620.25 × 42,620.25
4. Step 4: Simplify right side
   27,581.63x = 1,816,485,710.06
5. Step 5: Solve for x
   x = 1,816,485,710.06/27,581.63
6. Step 6: Final answer
   x = 65,858.55