Finding the Third Proportional to 20,663.50 and 45,147.50

Step by Step Solution

1. Step 1: Write the proportion equation
   20,663.50 : 45,147.50 = 45,147.50 : x
2. Step 2: Convert to fraction form
   20,663.50/45,147.50 = 45,147.50/x
3. Step 3: Cross multiply
   20,663.50x = 45,147.50 × 45,147.50
4. Step 4: Simplify right side
   20,663.50x = 2,038,296,756.25
5. Step 5: Solve for x
   x = 2,038,296,756.25/20,663.50
6. Step 6: Final answer
   x = 98,642.38