Finding the Third Proportional to 27,139.50 and 43,077.38

Step by Step Solution

1. Step 1: Write the proportion equation
   27,139.50 : 43,077.38 = 43,077.38 : x
2. Step 2: Convert to fraction form
   27,139.50/43,077.38 = 43,077.38/x
3. Step 3: Cross multiply
   27,139.50x = 43,077.38 × 43,077.38
4. Step 4: Simplify right side
   27,139.50x = 1,855,660,236.89
5. Step 5: Solve for x
   x = 1,855,660,236.89/27,139.50
6. Step 6: Final answer
   x = 68,374.89