Finding the Third Proportional to 20,938.50 and 45,570.09

Step by Step Solution

1. Step 1: Write the proportion equation
   20,938.50 : 45,570.09 = 45,570.09 : x
2. Step 2: Convert to fraction form
   20,938.50/45,570.09 = 45,570.09/x
3. Step 3: Cross multiply
   20,938.50x = 45,570.09 × 45,570.09
4. Step 4: Simplify right side
   20,938.50x = 2,076,633,444.38
5. Step 5: Solve for x
   x = 2,076,633,444.38/20,938.50
6. Step 6: Final answer
   x = 99,177.76