Finding the Third Proportional to 27,389.50 and 39,139.75

Step by Step Solution

1. Step 1: Write the proportion equation
   27,389.50 : 39,139.75 = 39,139.75 : x
2. Step 2: Convert to fraction form
   27,389.50/39,139.75 = 39,139.75/x
3. Step 3: Cross multiply
   27,389.50x = 39,139.75 × 39,139.75
4. Step 4: Simplify right side
   27,389.50x = 1,531,920,030.06
5. Step 5: Solve for x
   x = 1,531,920,030.06/27,389.50
6. Step 6: Final answer
   x = 55,930.92