Finding the Third Proportional to 20,448 and 42,763.50

Step by Step Solution

1. Step 1: Write the proportion equation
   20,448 : 42,763.50 = 42,763.50 : x
2. Step 2: Convert to fraction form
   20,448/42,763.50 = 42,763.50/x
3. Step 3: Cross multiply
   20,448x = 42,763.50 × 42,763.50
4. Step 4: Simplify right side
   20,448x = 1,828,716,932.25
5. Step 5: Solve for x
   x = 1,828,716,932.25/20,448
6. Step 6: Final answer
   x = 89,432.56