Finding the Third Proportional to 20,470 and 43,003

Step by Step Solution

1. Step 1: Write the proportion equation
   20,470 : 43,003 = 43,003 : x
2. Step 2: Convert to fraction form
   20,470/43,003 = 43,003/x
3. Step 3: Cross multiply
   20,470x = 43,003 × 43,003
4. Step 4: Simplify right side
   20,470x = 1,849,258,009
5. Step 5: Solve for x
   x = 1,849,258,009/20,470
6. Step 6: Final answer
   x = 90,339.91