Finding the Third Proportional to 20,047.50 and 40,505.06

Step by Step Solution

1. Step 1: Write the proportion equation
   20,047.50 : 40,505.06 = 40,505.06 : x
2. Step 2: Convert to fraction form
   20,047.50/40,505.06 = 40,505.06/x
3. Step 3: Cross multiply
   20,047.50x = 40,505.06 × 40,505.06
4. Step 4: Simplify right side
   20,047.50x = 1,640,660,088.13
5. Step 5: Solve for x
   x = 1,640,660,088.13/20,047.50
6. Step 6: Final answer
   x = 81,838.64