Finding the Third Proportional to 20,665.50 and 45,151.50

Step by Step Solution

1. Step 1: Write the proportion equation
   20,665.50 : 45,151.50 = 45,151.50 : x
2. Step 2: Convert to fraction form
   20,665.50/45,151.50 = 45,151.50/x
3. Step 3: Cross multiply
   20,665.50x = 45,151.50 × 45,151.50
4. Step 4: Simplify right side
   20,665.50x = 2,038,657,952.25
5. Step 5: Solve for x
   x = 2,038,657,952.25/20,665.50
6. Step 6: Final answer
   x = 98,650.31