Finding the Third Proportional to 20,502.50 and 30,646.75

Step by Step Solution

1. Step 1: Write the proportion equation
   20,502.50 : 30,646.75 = 30,646.75 : x
2. Step 2: Convert to fraction form
   20,502.50/30,646.75 = 30,646.75/x
3. Step 3: Cross multiply
   20,502.50x = 30,646.75 × 30,646.75
4. Step 4: Simplify right side
   20,502.50x = 939,223,285.56
5. Step 5: Solve for x
   x = 939,223,285.56/20,502.50
6. Step 6: Final answer
   x = 45,810.18