Finding the Third Proportional to 57,490 and 84,003

Step by Step Solution

1. Step 1: Write the proportion equation
   57,490 : 84,003 = 84,003 : x
2. Step 2: Convert to fraction form
   57,490/84,003 = 84,003/x
3. Step 3: Cross multiply
   57,490x = 84,003 × 84,003
4. Step 4: Simplify right side
   57,490x = 7,056,504,009
5. Step 5: Solve for x
   x = 7,056,504,009/57,490
6. Step 6: Final answer
   x = 122,743.16