Finding the Third Proportional to 20,376.75 and 42,063

Step by Step Solution

1. Step 1: Write the proportion equation
   20,376.75 : 42,063 = 42,063 : x
2. Step 2: Convert to fraction form
   20,376.75/42,063 = 42,063/x
3. Step 3: Cross multiply
   20,376.75x = 42,063 × 42,063
4. Step 4: Simplify right side
   20,376.75x = 1,769,295,969
5. Step 5: Solve for x
   x = 1,769,295,969/20,376.75
6. Step 6: Final answer
   x = 86,829.15