Finding the Third Proportional to 45,415 and 99,003

Step by Step Solution

1. Step 1: Write the proportion equation
   45,415 : 99,003 = 99,003 : x
2. Step 2: Convert to fraction form
   45,415/99,003 = 99,003/x
3. Step 3: Cross multiply
   45,415x = 99,003 × 99,003
4. Step 4: Simplify right side
   45,415x = 9,801,594,009
5. Step 5: Solve for x
   x = 9,801,594,009/45,415
6. Step 6: Final answer
   x = 215,822.83