Finding the Third Proportional to 27,200.81 and 42,555.38

Step by Step Solution

1. Step 1: Write the proportion equation
   27,200.81 : 42,555.38 = 42,555.38 : x
2. Step 2: Convert to fraction form
   27,200.81/42,555.38 = 42,555.38/x
3. Step 3: Cross multiply
   27,200.81x = 42,555.38 × 42,555.38
4. Step 4: Simplify right side
   27,200.81x = 1,810,959,941.39
5. Step 5: Solve for x
   x = 1,810,959,941.39/27,200.81
6. Step 6: Final answer
   x = 66,577.42