Finding the Third Proportional to 20,130 and 42,943

Step by Step Solution

1. Step 1: Write the proportion equation
   20,130 : 42,943 = 42,943 : x
2. Step 2: Convert to fraction form
   20,130/42,943 = 42,943/x
3. Step 3: Cross multiply
   20,130x = 42,943 × 42,943
4. Step 4: Simplify right side
   20,130x = 1,844,101,249
5. Step 5: Solve for x
   x = 1,844,101,249/20,130
6. Step 6: Final answer
   x = 91,609.60