Finding the Third Proportional to 18,803.25 and 39,156.75

Step by Step Solution

1. Step 1: Write the proportion equation
   18,803.25 : 39,156.75 = 39,156.75 : x
2. Step 2: Convert to fraction form
   18,803.25/39,156.75 = 39,156.75/x
3. Step 3: Cross multiply
   18,803.25x = 39,156.75 × 39,156.75
4. Step 4: Simplify right side
   18,803.25x = 1,533,251,070.56
5. Step 5: Solve for x
   x = 1,533,251,070.56/18,803.25
6. Step 6: Final answer
   x = 81,541.81