Finding the Third Proportional to 27,772.45 and 39,686.84

Step by Step Solution

1. Step 1: Write the proportion equation
   27,772.45 : 39,686.84 = 39,686.84 : x
2. Step 2: Convert to fraction form
   27,772.45/39,686.84 = 39,686.84/x
3. Step 3: Cross multiply
   27,772.45x = 39,686.84 × 39,686.84
4. Step 4: Simplify right side
   27,772.45x = 1,575,044,946.73
5. Step 5: Solve for x
   x = 1,575,044,946.73/27,772.45
6. Step 6: Final answer
   x = 56,712.49