Finding the Third Proportional to 22,198.50 and 53,572.50

Step by Step Solution

1. Step 1: Write the proportion equation
   22,198.50 : 53,572.50 = 53,572.50 : x
2. Step 2: Convert to fraction form
   22,198.50/53,572.50 = 53,572.50/x
3. Step 3: Cross multiply
   22,198.50x = 53,572.50 × 53,572.50
4. Step 4: Simplify right side
   22,198.50x = 2,870,012,756.25
5. Step 5: Solve for x
   x = 2,870,012,756.25/22,198.50
6. Step 6: Final answer
   x = 129,288.59